400% Casino Bonus Offers 2026

Q: What makes a 400% casino bonus worth claiming?

A 400% bonus is worth claiming when the cashout cap is at least four times your planned deposit, wagering applies to bonus only, the expiry window is at least 7 days, and the operator holds a current licence from a recognised authority.

Q: What is the optimal deposit for a 400% casino bonus?

Divide the cashout cap by 4. If the cap is $200, deposit $50 to receive exactly $200 bonus requiring $7,000 in bets at 35x. Depositing $100 gives $400 bonus but the cap is still $200, doubling wagering with no additional return.

Q: What is a 400% first deposit bonus?

A 400% first deposit bonus credits four dollars of bonus for every one deposited on your first transaction. It is the best offer that casino will make to your account. New casino launches in their first 30 to 60 days offer the most competitive 400% first deposit bonus terms.

Commercial content: 18+ only | Play responsibly | BeGambleAware.org | Terms & conditions apply

400% Casino Bonus 2026

A $50 deposit that plays like $250. That is what the right 400% casino bonus delivers, and it is the highest match percentage where the offers are still genuinely worth claiming. We have verified every 400 casino bonus above for licence, wagering basis, cashout cap, and active bonus codes. The work is done. Pick an offer, use the formula below to find your optimal deposit, and play with five times your money.

💰 Deposit quintupled instantly

✅ Only genuine 400% offers listed

🔑 Bonus codes listed where required

📋 Real numbers, no marketing maths

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Exclusive

25 Free Spins On Registration

18+ | T&C applies.

✓ Buffalo Wealth (Betsoft)
✓ 100% up to €100
✓ €20 Casino Min. Dep.

CLAIM BONUS

18+. New players only. Exclusive bonus on registration available only through our promotional link: 25 Free Spins on Buffalo Wealth (Betsoft). 35x wagering requirement on bonus money. Maximum bet €5. Maximum cashout €50. No deposit required. No verification needed. Bonus available as a pop-up and in the Rewards menu after registration. First deposit bonus: 100% up to €100 + 100 Free Spins. Minimum deposit €20. 40x wagering requirement on the bonus and 35x on Free Spins winnings, to be completed within 7 days. Maximum cashout from bonus winnings is €3,000. Maximum cashout from Free Spins winnings is €300. General Terms & Conditions apply.

Exclusive

50 No Deposit Spins

18+ | Terms & conditions apply.

✓ Take Olympus (Betsoft)
✓ 100% up to €500
✓ 50 Bonus Spins

CLAIM BONUS

18+. New players only. No Deposit Bonus: 50 Free Spins on Take Olympus (Betsoft). No bonus code required for this promotion. Wagering requirement 45x. Maximum bet €0.5. Maximum win €100. Email confirmation required. Free Spins are available directly in the game. Minimum deposit €10 required to withdraw winnings. First Deposit Bonus: 100% up to €500 + 50 Free Spins. Minimum deposit €20. Wagering requirement 40x (deposit + bonus) and 25x on Free Spins winnings. Maximum bet €4 while bonus is active. Bonus is valid for 7 days. Maximum total withdrawal is capped at €1,000. Free Spins are available on Ignis Rex. Winnings from Free Spins are credited as bonus funds. Bonuses may be forfeited if wagering is not completed, a withdrawal is requested early, or restricted play is detected. General Terms & Conditions apply.

Exclusive

200 Free Spin On Registration

18+ | T&C applies.

✓ Gates of Olympus (Pragmatic Play)
✓ 100% up to €920
✓ 200 Bonus Spins

CLAIM BONUS

18+. New players only. Exclusive bonus on registration available only through our promotional link: 200 Free Spins on Gates of Olympus (Pragmatic Play). No bonus code required. 20x wagering requirement on bonus money. Maximum bet €7. Maximum win €15. Email confirmation required. Minimum deposit of €4.33 required to withdraw winnings. Credited directly to your account balance upon registration. First deposit bonus: 100% up to €920 + 200 Free Spins. Minimum deposit €10. 45x wagering requirement. Minimum bet €0.1. Maximum bet €4.6. Maximum win capped at 4x the bonus amount. Note: EUR amounts have been converted to local currency using the latest available exchange rate. Original casino terms prevail in case of discrepancy. General Terms & Conditions apply.

125% up to €1000

18+ | Terms & conditions apply. | BetandPlay Casino

✓ 250 Bonus Spins
✓ Big Wild Buffalo (Belatra)
✓ 1 Wheel Spin

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18+. New players only. 125% bonus up to €1000 from €20 deposit, 50x wagering, max bet €5, max cashout €5000. 250 Free Spins on Belatra’s Big Wild Buffalo (50/day for 5 days) after qualifying deposit; FS winnings 50x wagering, max cashout €1000; FS valid 3 days, bonus valid 7 days. 1 Wheel Spin on 1st & 2nd deposits only; no prize without deposit; wheel cannot be reopened; wheel winnings wagering: FS x25, cash x5. Lucky Spin Silver terms and general terms apply. Terms apply.

new

200% up to €878

18+ | Terms & conditions apply.

✓ 100 Bonus Spins
✓ €9 Minimum Deposit
✓ 20% Cashback

CLAIM BONUS

18+. New players only. First Deposit Bonus: 200% up to €878 + 100 Bonus Spins, min. deposit €9, 60x wagering on deposit and bonus. Terms apply.

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€5 Free Cash on Signup

18+ | Terms & conditions apply. | Mr Fortune Casino

✓ 100% up to €700
✓ 50 Free Spins
✓ Fruit Zen

CLAIM BONUS

18+. New players only. No Deposit Bonus: €5 on registration. Wagering requirement 99x. Maximum bet €0.5. Maximum win €200. Email confirmation required. Bonus is activated automatically once the player signs up. 1st Deposit Bonus: Deposit €20 and receive a 100% bonus up to €700 + 50 Free Spins on Fruit Zen with your first deposit. Wagering requirement 40x (deposit + bonus) and 25x on Free Spins winnings. Maximum bet €4 while bonus is active. Maximum promotional winnings capped at €1,000. Bonus expires within 7 days if wagering is not completed. General Terms & Conditions apply.

exclusive

€20 Free Cash on Registration

18+ | T&C applies.

✓ 275% Bonus
✓ On First Deposit
✓ 1st Dep. Bonus Code: F01

CLAIM BONUS

18+. New players only. Exclusive bonus on registration available only through our promotional link: €20 Free Cash. 50x wagering requirement. Maximum bet €3. Maximum cashout €20. Email confirmation required. Minimum deposit of €10 required to withdraw winnings. First deposit bonus: 275% bonus. Promo code: F01. 30x wagering requirement. Maximum bet €3. Maximum cashout limited to 20x your deposit. Minimum deposit €10. Note: Original casino terms prevail in case of discrepancy. General Terms & Conditions apply.

110% up to €1000

18+ | T&C applies.

✓ 110 Bonus Spins
✓ Elvis Frog TRUEWAYS (BGaming)
✓ Bonus code: REELS

CLAIM BONUS

18+. New players only. CODE: REELS. First deposit bonus 110% up to €1,000 on deposits from €20. Includes 110 Bonus Spins on Elvis Frog TRUEWAYS, 55 credited on day 1 and 55 on day 2. Bonus terms, wagering requirements and withdrawal limits may apply. Terms apply.

Exclusive

€5 Free Cash on Signup

18+ | Terms & conditions apply. | Galactic Wins Casino

✓ 100% up to €500
✓ 50 Free Spins
✓ Fruit Zen

CLAIM BONUS

18+. New players only. No Deposit Bonus: €5 on registration. Wagering requirement 99x. Maximum bet €0.5 (currency equivalent). Maximum win €200 (currency equivalent). Email confirmation required. Bonus is activated automatically once the player signs up. 1st Deposit Bonus: Deposit €20 and receive a 100% bonus up to €500 + 50 Free Spins with your first deposit. Wagering requirement 40x (deposit + bonus) and 25x on Free Spins winnings. Maximum bet €4 while bonus is active. Maximum promotional winnings capped at €1,000. Bonus expires within 7 days if wagering is not completed. General Terms & Conditions apply.

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€5 Free Cash on Signup

18+ | Terms & conditions apply. | bCasino

✓ 100% up to €500
✓ 50 Free Spins
✓ Fruit Zen

CLAIM BONUS

18+. New players only. No Deposit Bonus: €5 on registration. Wagering requirement 99x. Maximum bet €0.5. Maximum win €200. Email confirmation required. Bonus is activated automatically once the player signs up. 1st Deposit Bonus: Deposit €20 and receive a 100% bonus up to €500 + 50 Free Spins on Fruit Zen. Wagering requirement 40x (deposit + bonus) and 25x on Free Spins winnings. Maximum bet €4 while bonus is active. Maximum promotional winnings capped at €1,000. Bonus expires within 7 days if wagering is not completed. General Terms & Conditions apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Bonus code: OLYMP50
✓ Book of Books (Peter &Sons)
✓ 0x Wager

CLAIM BONUS

18+. New players only. 50 Free Spins on Book of Books (Peter & Sons), CODE: OLYMP50, 0x wagering, max cashout €30, email verification required. Activate the bonus code during registration in your profile. Min. deposit €20 required to withdraw winnings. First Deposit Bonus: 100% up to €300 + 50 Bonus Spins on Book of Zeus, wager-free, min. deposit €20. Terms apply.

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70 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Candy Craze (Evoplay)
✓ 100% up to €500
✓ 100 Bonus Spins

CLAIM BONUS

18+. New players only. 70 Free Spins on Candy Craze (Evoplay), wagering 5x, max bet €5, max win capped at 3x winnings from Free Spins, phone verification required, €20 min. deposit to withdraw winnings. First deposit bonus: Deposit min. €10 after the first hour, get 100% bonus up to €500, wagering 40x on bonus, max transfer €500, max cashout x5 the bonus amount. Includes 100 Bonus Spins on Big Bass Splash, wagering 40x, max cashout €100 from spins. Terms apply.

Exclusive

24 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Big Bass Splash / Voodoo People
✓ 100% up to €500
✓ 150 Bonus Spins

CLAIM BONUS

18+. New players only. 24 Free Spins on Big Bass Splash (Pragmatic Play) or Voodoo People (BGaming), 50x wagering, max bet €5, max win €5. Email verification required. Bonus activated via notification / promo section. First Deposit Bonus: 100% up to €500 + 150 Free Spins, min. deposit €20. Get 50 Free Spins on Sweet Bonanza instantly plus 20 Bonus Spins per day for 5 consecutive days on Big Bass Bonanza, John Hunter Book of Tut, Gates of Olympus 1000, Sugar Rush and Hot to Burn. Bonus Spins must be activated in the promo section. Terms apply.

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30 Free Spins On Registration

18+ | Terms & conditions apply. | Slots Gallery Casino

✓ Wild West TRUEWAYS (BGaming)
✓ Bonus Code: 30WW
✓ 100% up to €777

CLAIM BONUS

18+. New players only. 30 Free Spins on Wild West TRUEWAYS (BGaming), CODE: 30WW, 40x wagering, max bet €1, max win €50. Email verification required. Bonus available in the Wallet. Min. deposit €20 required to withdraw winnings. First Deposit Bonus: 100% up to €777 + 100 Free Spins on Elvis Frog TRUEWAYS (BGaming), CODE: SLOTS, min. deposit €20, 40x wagering on bonus and Free Spins winnings, max bet €5, max win 10x bonus amount. 50 Free Spins credited instantly and 50 the next day, activation required within 1 day. Bonus valid for 5 days. Terms apply.

25 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Jewel Boom Super Drop (BGaming)
✓ 120% up to €2000
✓ 100 Bonus Spins

CLAIM BONUS

18+. New players only. 25 Free Spins on Jewel Boom Super Drop (BGaming), 40x wagering, max bet $5, max win $100. Email verification required. Bonus available in the Profile after registration and email confirmation. Min. deposit $30 required to withdraw winnings. First Deposit Bonus: 120% up to $2,000 + 100 Bonus Spins on Elvis Frog Trueways (BGaming), min. deposit $30, 40x wagering, valid for 7 days. Terms apply.

Exclusive

100 Free Spins No Deposit

18+ | Terms & conditions apply.

✓ Available on 4 slots
✓ Bonus code: HJ100
✓ 100% up to €500

CLAIM BONUS

18+. New players only. CODE: HJ100, 100 Free Spins in the Bonus Hub after email confirmation on Royal Joker: Hold and Win (Playson), Big Bass Bonanza (Pragmatic Play), Book of Demi Gods 2 (Spinomenal) or Starburst (NetEnt), 35x wagering, max bet €5, max win €50, min. deposit to withdraw winnings €20. 100% up to €500 + 150 Bonus Spins on Gates of Olympus or selected BGaming slots, 50 spins daily for 5 days, min. deposit €15, 40x wagering, max bet €5, max win €50. Terms apply.

100% up to €777

18+ | T&C applies

✓ 100 Bonus Spins
✓ Bonus code: BOHO
✓ Minimum deposit $20

CLAIM BONUS

18+. New players only. First Deposit Bonus: 100% up to €777 + 100 Free Spins on Elvis Frog TRUEWAYS (BGaming), CODE: BOHO, min. deposit €20, 40x wagering on bonus and Free Spins winnings, max bet €5, max win 10x bonus amount. 50 Free Spins credited instantly and 50 the next day, activation required within 1 day. Bonus valid for 5 days. Terms apply.

Exclusive

30 Free Spins on Registration

18+ | Terms & conditions apply. | Stay Casino

✓ Aloha King Elvis
✓ €1,000 + 100 Bonus Spins
✓ BGaming Slots

CLAIM BONUS

18+. New players only. Get 30 Free Spins on Aloha King Elvis (BGaming). Wagering 50x, max bet €5, max win €100. Bonus in profile. First deposit bonus: 100% up to €1000 + 100 FS (25/day for 4 days) on BGaming slots. Min deposit €20. Wagering 40x. Terms apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Bonus code: SPIN50WIN
✓ Available on 5 slots
✓ €500 Bonus + 150 Spins

CLAIM BONUS

18+. New players only. No Deposit Bonus: 50 Free Spins on selected slots (Royal Joker: Hold and Win, Big Bass Bonanza, Book of Demi Gods 2, Starburst, Gold Rush with Johnny Cash). Code: SPIN50WIN. Email verification required. Bonus available in the Bonus section. Wagering 35x. Max bet €5. Max win €50. Min. deposit €10 required to withdraw winnings. First Deposit Bonus: 100% up to €500 + 150 Free Spins. Bonus wagering applies. Bonus valid 7 days. Max bet €5 during wagering. Terms apply.

Exclusive

35 Free Spins On Registration

18+ | Terms & conditions apply. | Stupid Casino

✓ Bonus code: TOD35
✓ Tower of Fortuna (Betsoft)
✓ Wager 0x

CLAIM BONUS

18+. New players only. 35 Free Spins on Tower of Fortuna (Betsoft), CODE: TOD35, no wagering, max bet €4, max win €20. Email verification required. Bonus must be activated with the bonus code in the player profile. Min. deposit €20 required to withdraw winnings. Welcome Bonus Package: 1st deposit 100% up to €300, 2nd deposit 50% up to €400, 3rd deposit 100% up to €300. Min. deposit €20 per bonus, bonus must be selected before deposit. No wagering requirements. Max bet €4 while bonus is active. Max withdrawal 5x bonus amount. Bonus is forfeited upon withdrawal request. Terms apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Joker Stoker (Endorphina)
✓ 100% up to €500
✓ 100 Bonus Spins

CLAIM BONUS

18+. New players only. 50 Free Spins on Joker Stoker (Endorphina), wagering 5x, min. deposit €10 or currency equivalent to withdraw winnings, phone and email verification + KYC required, bonus available in-game, max conversion to real balance x3 Free Spins winnings after wagering. 100% first deposit bonus up to €500 + 100 Bonus Spins (50 per day) on Big Bass Splash (Pragmatic Play), min. deposit €10, wagering 40x for bonus and Bonus Spins, max cashout x5 the deposit amount, bonus must be activated before deposit, each bonus step valid 72h and must be completed in order, bonus expires in 5 days if wagering is not completed. Terms apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Sweet Bonanza (Pragmatic)
✓ 150% Bonus & 20 Bonus Spins
✓ Gates of Olympus 1000 (Pragmatic)

CLAIM BONUS

18+. New players only. 50 Free Spins on Sweet Bonanza (Pragmatic Play), 30x wagering, max bet €5, max win €10. Email & phone verification required, plus KYC with at least 1 document. Bonus available directly in the game. Min. deposit €5 to withdraw winnings. 1st deposit bonus: 150% + 20 Bonus Spins on Gates of Olympus 1000 (Pragmatic Play) for deposits €10–€20, wagering 40x on bonus and spins, max bonus €500, max cashout x5 of bonus amount up to €500, max conversion from spins winnings €20. Terms apply.

Exclusive

100 Free Spins No Deposit

18+ | Terms & conditions apply.

✓ Available on 5 slots
✓ Bonus code: GOLD100
✓ 100% up to €500

CLAIM BONUS

18+. New players only. NDB: 100 Free Spins on Royal Joker: Hold and Win (Playson), Big Bass Bonanza (Pragmatic Play), Book of Demi Gods 2 (Spinomenal), Starburst (NetEnt) or Gold Rush with Johnny Cash (BGaming), CODE: GOLD100, 35x wagering requirement, max bet €5 (or currency equivalent), max win €50 (or currency equivalent). Email and phone verification required. First Deposit Bonus: 100% up to €500 + 50 Bonus Spins (or currency equivalent). Terms apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Big Bass Splash (Pragmatic Play)
✓ 100% up to €300
✓ 100 Bonus Spins

CLAIM BONUS

18+. New players only. 50 Free Spins on Big Bass Splash (Pragmatic Play), 35x wagering, max bet €5, max win €25. Phone verification required. To claim, launch a qualifying slot. Welcome Bonus: 100% up to €300 + 100 Bonus Spins on Big Bass Splash (Pragmatic Play) for deposits from €10. Bonus must be activated before deposit. Bonus valid for 48 hours, wagering 40x on cash bonus and 30x on spins, spins valid for 2 days. Max conversion x5 bonus amount. Bonus expires if wagering is not completed within 5 days. Terms apply.

Exclusive

20 Free Spins on Registration

18+ | Terms & conditions apply. | Slotozen Casino

✓ Dragon’s nest (Mascot)
✓ €1,000 & 100 Bonus Spins
✓ BGaming Slots

CLAIM BONUS

18+. New players only. Get 20 Free Spins on Dragon’s Nest (Mascot). Wagering 50x, max bet €5, max win €100. First deposit bonus: 100% up to €1000 + 100 Free Spins (25/day for 4 days) on BGaming slots. Wagering 40x. Terms apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Book of Dead (Play'n GO)
✓ 120% Bonus & 70 Bonus Spins
✓ €10 Minimum Deposit

CLAIM BONUS

18+. New players only. 50 Free Spins on Book of Dead (Play'n GO), wagering requirement 3x, max. bet €5, max. win €25. Phone verification required. To activate, launch a qualifying slot game. 1st deposit within 60 minutes after registration: 120% bonus up to €500 + 70 Bonus Spins on Joker Stoker (Endorphina), minimum deposit €10, wagering requirement 40x for the cash bonus and 30x for the Free Spins, max. cashout x5 for bonus and Free Spins winnings. Terms apply.

Exclusive

35 Free Spins On Registration

18+ | Terms & conditions apply. | Wolfy Casino

✓ Bonus code: TAM35
✓ Tower of Fortuna (Betsoft)
✓ Wager 0x

CLAIM BONUS

18+. New players only. 35 Free Spins on Tower of Fortuna (Betsoft), CODE: TAM35, no wagering, max win €20. Email verification required. Bonus must be activated with the bonus code in the player profile. Min. deposit €20 required to withdraw winnings. Welcome Bonus Package: 1st deposit 100% up to €200, 2nd deposit 50% up to €300, 3rd deposit 50% up to €400, 4th deposit 100% up to €100. Min. deposit €20 per bonus. No wagering requirements. Max bet €4 while bonus is active. Max withdrawal 5x bonus amount. Bonus is forfeited upon withdrawal request. Terms apply.

Exclusive

20 Free Spins No Deposit

18+ | Terms & conditions apply.

✓ Bonanza Billion / Gift Rush
✓ €500 Bonus + 100 Spins
✓ Bonus Code: FDB500

CLAIM BONUS

18+. New players only. 20 Free Spins on Bonanza Billion or Gift Rush by BGaming, 40x wagering requirement, max bet €5, max win €30. No account verification required. Bonus available via notification in the bonus section. Min. deposit €20 to withdraw winnings. 100% up to €500 + 100 Bonus Spins on Fortune Chest (Endorphina) or Divine Queen: Heart of Ice (BGaming), CODE: FDB500, min. deposit €20, 40x wagering requirement on bonus and Bonus Spins winnings. Bonus Spins activate within 3 days and expire after 7 days. Bonus must be wagered within 7 days. Terms apply.

Exclusive

20 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Wild Cash / WildTiger
✓ 100% up to €500
✓ 100 Bonus Spins

CLAIM BONUS

18+. New players only. No Deposit Bonus: 20 Free Spins on Wild Cash or WildTiger (BGaming). No bonus code required for this promotion. Wagering 50x. Max bet €5. Max win €30. No verification required. Bonus available in the bonus section after notification. Minimum deposit €20 required to withdraw winnings. First Deposit Bonus: 100% up to €500 + 100 Free Spins on Lady Wolf Moon / Hot Chilli Bells (BGaming). Bonus code: WIN100. Minimum deposit €30. Free Spins must be activated within 3 days and are valid for 7 days. General Terms apply.

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60 Free Spins On Registration

18+ | Terms & conditions apply. | Gamblezen Casino

✓ Bonus code: 60SUMMER
✓ Le Bandit (Hacksaw)
✓ 200% up to €500

CLAIM BONUS

18+. New players only. 60 Free Spins on Le Bandit (Hacksaw), CODE: 60Summer, 40x wagering on bonus funds, max. bet €5, unlimited winnings, max. cashout €60. KYC verification required. VPN friendly. Min. deposit €20 required to withdraw winnings. Welcome Bonus: 200% up to €500 + 100 Bonus Spins on Dog House (Pragmatic Play), min. deposit €20, valid on the first 4 deposits. Terms apply.

100% up to €1,000

18+ | Terms & conditions apply. | Wanted Win Casino

✓ 100 Bonus Spins
✓ BGaming slots
✓ €20 Minimum deposit

CLAIM BONUS

18+. New players only. First deposit bonus: 100% up to €1000 + 100 Bonus Spins (25 now + 25 daily for 3 days) on The Dog House (Pragmatic Play). Minimum deposit €20. Bonus and spins subject to wagering requirements. Terms apply.

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€5 Free Cash on Signup

18+ | Terms & conditions apply.

✓ 100% up to €500
✓ 50 Free Spins
✓ Fruit Zen

CLAIM BONUS

18+. New players only. No Deposit Bonus: €5 on registration. Wagering requirement 99x. Maximum bet €4. Maximum win €200. Email confirmation required. Bonus is activated automatically once the player signs up. 1st Deposit Bonus: Deposit €20 and receive a 100% bonus up to €500 + 50 Free Spins on Fruit Zen with your first deposit. Wagering requirement 40x (deposit + bonus) and 25x on Free Spins winnings. Maximum bet while wagering is €4. Maximum promotional winnings capped at €1,000. Bonus expires within 7 days if wagering is not completed. Free Spins winnings are credited as bonus funds. Feature buys, low-risk betting strategies, and switching between low/high contribution games are prohibited while wagering. Free Spins are available on Fruit Zen, Coins of Zeus - Hold & Win™ and Book of Gold: Multichance. General Terms & Conditions apply.

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50 Free Spins No Deposit

18+ | Terms & conditions apply. | Verde Casino

✓ Book of Sirens (Spinomenal)
✓ 120% up to €300
✓ 50 Bonus Spins

CLAIM BONUS

18+. New players only. 50 Free Spins on Book of Sirens (Spinomenal), 3x wagering, max bet €5, max win €25, phone verification required; spins credited after launching a qualifying slot. 1st deposit: min. €10, 120% bonus up to €300 + 50 Bonus Spins on Coin Win 2: Hold the Spin (Gamzix), 40x wagering on bonus and spins, spin value €0.20, max cashout x5 the deposit; bonus must be activated in the “Bonuses” section within 4 days of registration, each step valid 48h, wagering must be completed within 5 days. Terms apply.

Exclusive

20 Free Spins On Registration

18+ | T&C applies.

✓ Aztec Magic Deluxe
✓ €650 Bonus + 50 Spins
✓ €10 Minimum Deposit

CLAIM BONUS

18+. New players only. 20 Free Spins on Aztec Magic Deluxe, 40x wagering, max bet €5, max win €50; phone confirmation required; bonus available in bonus section; €10 min deposit required to withdraw NDB winnings. Welcome Bonus: 100% up to €650 + 50 Free Spins on first €10+ deposit. Terms apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Wild Cash (BGaming)
✓ Bonus code: CASH
✓ 100% up to 1.5 BTC

CLAIM BONUS

18+. New players only. 50 Free Spins on Wild Cash (BGaming) with code CASH, wagering 45x, max win €50; no account verification required; enter code during sign-up, activate via notification or in account; no minimum deposit required to withdraw, but winnings must be wagered and meet minimum cashout balance. First deposit bonus: 100% up to 1.5 BTC + 100 Bonus Spins on Aloha King Elvis, min. deposit €20, wagering 35x (bonus and spins), max winnings from spins €100. Terms apply.

Exclusive

20 No Deposit Spins

18+ | Terms & conditions apply.

✓ Super Sweets (Betsoft)
✓ Bonus Code: CRLS20
✓ 0x Wager

CLAIM BONUS

18+. New players only. 20 Free Spins on Super Sweets (Betsoft), CODE: CRLS20, 0x wagering, max withdrawal 5x the deposit amount. Email verification required. Activate the bonus code in the Bonus section of your profile after registration. Min. deposit €20 required to withdraw winnings. First Deposit Bonus: CODE: WELCOME100, 100% up to €500, min. deposit €20, no wagering requirements, max bet €3. Terms apply.

100% up to €333

18+ | Terms & conditions apply. | Casino Rocket

✓ 50 Bonus Spins
✓ €20 Minimum deposit
✓ Weekly Bonus Spins offers

CLAIM BONUS

Welcome Bonus: 100% up to €333 + 50 Free Spins, min deposit €20, 45x wagering on bonus and Free Spins winnings.

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20 No Deposit Spins

18+ | Terms & conditions apply. | CasinoStars

✓ Super Sweets (Betsoft)
✓ Bonus Code: CRLS20
✓ 0x Wager

CLAIM BONUS

18+. New players only. 20 Free Spins on Super Sweets (Betsoft), CODE: CRLS20, 0x wagering, max withdrawal 5x the deposit amount. Email verification required. Activate the bonus code in the Bonus section of your profile after registration. Min. deposit €20 required to withdraw winnings. First Deposit Bonus: CODE: STARS1, 100% up to €300, min. deposit €20, no wagering requirements, max bet €3. Terms apply.

110% up to €500

18+ | Terms & conditions apply.

✓ 20 Bonus Spins
✓ Xperiment Gold (Popiplay)
✓ €20 Minimum Deposits

CLAIM BONUS

18+. New players only. 1st Deposit Bonus: deposit €10 get 50 Bonus Spins on Xperiment Gold (Popiplay); deposit €20 get 110% up to €500 + 20 Bonus Spins; deposit €50+ get 110% up to €500 + 150 Bonus Spins. High Roller: deposit €300+ get 110% up to €1,000 + 280 Bonus Spins. Wagering 45x, max bet €5. Bonus available in the Wallet and via email notification. No account verification required. Terms apply.

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20 No Deposit Spins

18+ | Terms & conditions apply. | Casino Orca

✓ Super Sweets (Betsoft)
✓ Bonus Code: CRLS20
✓ 0x Wager

CLAIM BONUS

18+. New players only. 20 Free Spins on Super Sweets (Betsoft), CODE: CRLS20, 0x wagering, max cashout €100. Email verification required. Activate the bonus code in the Bonus section of your profile after registration. Min. deposit €20 required to withdraw winnings. First Deposit Bonus: CODE: ORCA1, 100% up to €500, min. deposit €20, no wagering requirements, max bet €3, max withdrawal 5x the deposit amount. Terms apply.

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20 No Deposit Spins

18+ | Terms & conditions apply. | Thor Casino

✓ Super Sweets (Betsoft)
✓ Bonus Code: CRLS20
✓ 0x Wager

CLAIM BONUS

18+. New players only. 20 Free Spins on Super Sweets (Betsoft), CODE: CRLS20, 0x wagering, max withdrawal 5x the deposit amount. Email verification required. Activate the bonus code in the Bonus section of your profile after registration. Min. deposit €20 required to withdraw winnings. First Deposit Bonus: CODE: THOR1, 100% up to €200 + 25 Bonus Spins on Thor Hammer Time, min. deposit €20. Terms apply.

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20 No Deposit Spins

18+ | Terms & conditions apply.

✓ Super Sweets (Betsoft)
✓ Bonus Code: CRLS20
✓ 0x Wager

CLAIM BONUS

18+. New players only. 20 Free Spins on Super Sweets (Betsoft), CODE: CRLS20, 0x wagering, max cashout €100. Email verification required. Activate the bonus code in the Bonus section of your profile after registration. Min. deposit €20 required to withdraw winnings. First Deposit Bonus: 125% up to €500 + 50 Bonus Spins on Big Bass Splash, CODE: ART125, min. deposit €20, no wagering requirements, max bet €3, max withdrawal 5x the deposit amount. Terms apply.

Exclusive

20 Free Spins No Deposit

18+ | Terms & conditions apply.

✓ Hot Chilli Bells 100 / Chicken Rush
✓ 100% up to €1000
✓ 250 Bonus Spins

CLAIM BONUS

18+. New players only. 20 Free Spins no deposit on Hot Chilli Bells 100 or Chicken Rush (BGaming), wagering 40x, max bet €5, max win €30, no verification required, bonus available via notification in bonus section, €20 minimum deposit to withdraw winnings. 1st deposit: 100% up to €1,000 + 250 Free Spins on Book of Ganesha (Endorphina) or Legacy of Cobra (BGaming), credited 125 per day for 2 days, 3-day activation period, 7-day validity, min deposit €20, 40x wagering on bonus and Free Spins winnings. Terms apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply. | Ice Casino

✓ Book of Fallen (Pragmatic Play)
✓ 100% up to €500
✓ 100 Bonus Spins

CLAIM BONUS

18+. New players only. 50 Free Spins on Book of Fallen, 3x wagering, max bet €5, max win €25, phone confirmation required. 1st deposit: 100% up to €500 + 100 Bonus Spins on Joker Stoker (50/day for 2 days), min deposit €10, 40x wagering, max cashout 5x deposit, activate and deposit within 60 minutes of registration. Terms apply.

Exclusive

30 Free Spins On Registration

18+ | Terms & conditions apply.

✓ FruitMillion (Bgaming)
✓ Bonus code: SMAFIA30
✓ 100% up to €5000

CLAIM BONUS

18+. New players only. NDB: 30 Free Spins on FruitMillion (BGaming), CODE: SMAFIA30, 40x wagering requirement, max bet €5, max win €50. No account verification required. Bonus credited directly to the player account. First Deposit Bonus: 100% up to €/$5,000 + up to 200 Bonus Spins depending on the deposit amount, CODE: SM1. Terms apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Available on 5 slots
✓ Bonus Code: EXL50BBB
✓ €500 Bonus & 150 Bonus Spins

CLAIM BONUS

18+. New players only. Code: EXL50BBB. 50 Free Spins on Royal Joker: Hold and Win, Big Bass Bonanza, Book of Demi Gods 2, Starburst or Gold Rush with Johnny Cash; 35x wagering, max bet €5, max win €50. Welcome bonus: 100% up to €500 + 150 Free Spins, bonus wagering 35x, valid for 7 days. Terms apply.

Exclusive

150% up to €500

18+ | Terms & conditions apply.

✓ 50 Bonus Spins
✓ Gates of Olympus
✓ Bonus code: WIN500

CLAIM BONUS

18+. New players only. Code: WIN500. 150% bonus up to €500 + 50 Bonus Spins on Gates of Olympus. Min. deposit €20. Wagering 40x. Max bet €5. Max win €500 from bonus cash and €150 from spins. Terms apply.

400% up to €2,000

18+ | Terms & conditions apply. | Golden Genie Casino

✓ 100 Bonus Spins
✓ The Wish Master (NetEnt)
✓ Bonus Code: GENIE1

CLAIM BONUS

18+. New players only. 1st dep: 400% up to €2000 + 100 Bonus Spins, 2nd: 200% up to €1000 + 50BS, 3rd: 150% up to €1000 + 25BS. 50x wagering. Terms apply.

Exclusive

36 Free Spins On Registration

18+ | Terms & conditions apply. | Impressario Casino

✓ Take Olympus (Betsoft)
✓ €1000 Bonus + 100 Spins
✓ Gates of Olympus (Pragmatic)

CLAIM BONUS

18+. New players only. 36 FS on Take Olympus, 40x wagering, max bet €5, max win €50; FS automatically credited. Welcome Bonus: 100% up to €1000 + 100 FS; €10 min deposit; 40x wagering; bonus valid 30 days; €5 max bet; excluded games apply; max withdrawal x10; FS max €100. Terms apply.

100% up to €1000

18+ | Terms & conditions apply.

✓ 100 Bonus Spins
✓ Boom! Boom! Gold! (Booongo)
✓ €20 Min. Deposit

CLAIM BONUS

18+. New players only. 100% first deposit bonus up to €1,000 + 100 Bonus Spins on Boom! Boom! Gold!. Min. deposit €20. Bonus and Bonus Spins winnings wagering 40x (bonus + Bonus Spins winnings). Bonus Spins must be activated within 5 days. Bonus valid for 5 days. Max bet €5 while wagering. Max win restriction applies after wagering completion. Terms apply.

500 Bonus Spins

18+ | Terms & conditions apply.

✓ €20 Deposit
✓ Choose your slot
✓ Multiple Bonuses

CLAIM BONUS

18+. New players only. Min deposit €20. Rookie Rush Welcome Offer in three stages: wager €50 for 50 Bonus Spins; wager €250 for 200 Bonus Spins; wager €500 for 250 Bonus Spins. Wagering must be completed on selected Pragmatic Play slots. Bonus Spins available on: Sweet Bonanza Super Scatter, Gates of Olympus Super Scatter, Sugar Rush 1000, Floating Dragon, Zeus vs Hades Gods of War, Brick House Bonanza, Wisdom of Athena 1000, Big Bass Splash. Wagering must be completed within 7 days; Bonus Spins expire 72 hours after being credited. Wins from Bonus Spins credited as cash. Currency equivalents apply for non-USD players. Terms apply.

200% up to €5,000

18+ | Terms & conditions apply.

✓ 50 Bonus Spins
✓ Spinman (Hacksaw)
✓ €20 Min. Deposit

CLAIM BONUS

18+. New players only. 200% bonus up to €5,000 on deposit, min €20, wagering 30x bonus; 50 Bonus Spins on Spinman; claim within 60 days of registration; bonus and Bonus Spins wagering must be completed within 7 days; slots count 100% toward wagering. Terms apply.

Exclusive

20 Free Spins On Registration

18+ | Terms & conditions apply. | Wild Fortune Casino

✓ Wild Cash / Miss Cherry Fruits
✓ 100% up to €2000
✓ €20 Minimum Deposit

CLAIM BONUS

18+. New players only. 20 Free Spins on Wild Cash or Miss Cherry Fruits (BGaming), wagering 45x, max bet €5, max win €50. On 1st deposit, 100% bonus up to €2,000, min. deposit €20, max withdrawal €3,500. Max withdrawal from Free Spins: €50. Offer not available in Sweden or Finland. Terms apply.

20 Free Spins on Registration

18+ | Terms & conditions apply.

✓ Buffalo Richard Dale
✓ €1,000 & 100 Bonus Spins
✓ BGaming Slots

CLAIM BONUS

18+. New players only. Get 20 Free Spins on Buffalo Richard Dale (GameBeat). Wagering 50x, max bet €5, max win €100. Min deposit €20 to withdraw winnings. First deposit bonus: 100% up to €1000 + 100 Free Spins (25/day over 4 days) on BGaming slots. Terms apply.

Exclusive

30 No Deposit Spins

18+ | Terms & conditions apply. | NovaJackpot Casino

✓ Lucky Dwarfs (Ela Games)
✓ 100% up to €1,000
✓ 100 Bonus Spins

CLAIM BONUS

18+. New players only. 30 Free Spins on Lucky Dwarfs (Ela Games). Wagering 40x. Max bet €5. Max cashout €30. Min deposit €20. 1st deposit: 100% bonus up to €1,000 + 100 Free Spins. Wagering 35x (deposit + bonus). Max bet €5. Terms apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Lady Wolf Moon (Megaways)
✓ €100 Bonus & 75 Spins
✓ Minimum deposit €20

CLAIM BONUS

18+. New players only. 50 Free Spins on Lady Wolf Moon Megaways, wagering 40x, max bet €5, max win €50. Welcome Bonus: Deposit €20–€100 = 100% up to €100 + instant bonus round + 75 FS (25/day for 3 days). Deposit €100–€300 = 110% up to €330 + instant bonus round + 100 FS (25/day for 4 days). Deposit €300+ = 120% up to €600 + instant bonus round + 125 FS (25/day for 5 days). Min deposit €20, max bonus €600, up to 125 FS total. Terms apply.

100% up to €50

18+ | Terms & conditions apply. | Playfina Casino

✓ Gold Rush with Johnny Cash
✓ 50 Bonus spins
✓ Bonus code: FIRST

CLAIM BONUS

18+. New players only. Code: FIRST. First deposit bonus: 100% up to €300 + up to 200 Free Spins on Gold Rush with Johnny Cash (BGaming). Deposit from €20: 100% up to €50 + 50 FS; deposit from €50: 100% up to €200 + 100 FS; deposit from €200: 100% up to €300 + 200 FS. Bonus must be activated in the profile under “Bonuses”. Terms apply.

100% up to €50

18+ | Terms & conditions apply. | Asino Casino

✓ Elvis Frog TRUEWAYS
✓ 50 Bonus Spins
✓ Bonus code: START

CLAIM BONUS

18+. New players only. Code: START. First deposit bonus: 100% up to €300 + up to 200 Free Spins on Elvis Frog TRUEWAYS (BGaming). Deposit from €20: 100% up to €50 + 50 FS; deposit from €50: 100% up to €200 + 100 FS; deposit from €200: 100% up to €300 + 200 FS. Bonus must be activated via the “Bonuses” tab in the profile. Terms apply.

150% up to €450

18+ | Terms & conditions apply.

✓ 100 Bonus Spins
✓ Sugar Rush (Pragmatic Play)
✓ Sports Betting

CLAIM BONUS

18+. New players only. Min. deposit €20. 150% bonus up to €450 + 100 Bonus Spins on Sugar Rush (20/day). Wagering 40x. Max bet €5. Bonus valid 10 days. Terms apply.

100% up to €500

18+ | Terms & conditions apply. | StoneVegas Casino

✓ 200 Bonus Spins
✓ 1 Bonus Crab
✓ €20 Minimum deposit

CLAIM BONUS

18+. New players only. 100% first deposit bonus up to €500 (min. deposit €20) + 200 Bonus Spins (20/day for 10 days; each block claimable within 24h; spins usable only with an active bonus). Wagering: 35x deposit+bonus; Bonus Spins winnings 40x. Max bet €5. Complete wagering within 10 days. Deposits via Skrill/Neteller not eligible. One bonus at a time; early withdrawal cancels bonus. Terms apply.

100% up to €500

18+ | Terms & conditions apply.

✓ 200 Bonus Spins
✓ 1 Bonus Crab
✓ €10 Minimum deposit

CLAIM BONUS

18+. New players only. 1st deposit: 100% up to €500, min. deposit €20, wagering requirement 35x (deposit + bonus); + 200 bonus spins (20 per day for 10 days). Terms and conditions apply.

100% up to €500

18+ | Terms & conditions apply.

✓ 100 Bonus Spins
✓ On Your First Deposit
✓ Sports Betting

CLAIM BONUS

18+. New players only. 1st deposit: 100% bonus up to €500, min €30, wagering 40x bonus; plus 100 Bonus Spins, BS winnings x35, max cashout €50; bonus expires in 7 days; slots count 100% toward wagering. Terms apply.

75% up to €200

18+ | Terms & conditions apply.

✓ 50 Bonus Spins
✓ Wild Cash (BGaming)
✓ 20% Weekly Cashback

CLAIM BONUS

18+. New players only. 1st deposit: 75% up to 200 EUR, min 25 EUR, wagering 40x bonus; + 50 Bonus Spins on Wild Cash (credited after the cash bonus), Bonus Spins winnings x40; bonus expires in 7 days; slots count 100% toward wagering. Terms apply.

100% up to €200

18+ | Terms & conditions apply. | Arcanebet Casino

✓ 50 Spins on Northern Sky
✓ Bonus code: CASINO
✓ €10 Minimum deposit

CLAIM BONUS

18+. New players only. 1st deposit: 100% up to €200 + 50 Free Spins on Northern Sky (value €0.10), code: CASINO. Wagering 35x on bonus and spin winnings in 30 days. Min. deposit €10. Crypto excluded. Terms apply.

Exclusive

100% up to €600

18+ | Terms & conditions apply. | Izzi Casino

✓ €20 Minimum Deposit
✓ Weekly reload bonuses
✓ 10% Weekly Cashback

CLAIM BONUS

18+. New players only. First deposit: 100% bonus up to €600. Min. deposit: €20. Wagering requirement: 45x. Max win from bonus: 10x the bonus amount. Terms apply.

Exclusive

40 Free Spins On Registration

18+ | Terms & conditions apply. | LV BET Casino

✓ Book of Gods (Big Time Gaming)
✓ 150% up to €1555
✓ 155 Bonus Spins

CLAIM BONUS

18+. New players only. No Deposit Bonus: 40 Free Spins on Book of Gods (Big Time Gaming), wagering 30x, max bet €5, max win €50. 1st deposit: 150% up to €/$1,555 + up to 155 Free Spins. Minimum deposit €/$5. Deposit and bonus must be wagered 30x before withdrawal; max bet €/$5. Bonus valid 15 days. Free Spins (up to 155) on selected BF Games slots, spin value €/$0.10; winnings subject to 25x wagering within 15 days. Unused bonus or spins expire. Activate before deposit. Terms apply.

250% Casino Bonus

18+ | Terms & conditions apply. | Spintime Casino

✓ Up to €250
✓ 10% Cashback
✓ Sports Betting

CLAIM BONUS

18+. New players only. First deposit bonus: 250% up to €250. Wagering requirement 30x the bonus amount. Terms apply.

Exclusive

35 Free Spins On Registration

18+ | Terms & conditions apply. | Lucky Elf Casino

✓ Fortune Three Xmas (Gamebeat)
✓ Bonus Code: MERRYPLAY
✓ €2000 Bonus + 100 Spins

CLAIM BONUS

18+. New players only. Code: MERRYPLAY, 35 Free Spins on Fortune Three Xmas, wagering 40x, max bet €1, max win €3, max cashout €50; email verification required; bonus found in-game; €20 min deposit to withdraw winnings. Welcome Bonus: Code ELF1, 100% up to €2000 + 100 Free Spins on Dolphin’s Wealth; minimum deposit €20; 35x wagering; one-time activation; FS max win €100; no max withdrawal. Terms apply.

Exclusive

20 Free Spins on Registration

18+ | Terms & conditions apply.

✓ Take Olympus (Betsoft)
✓ 200% up to €1,000
✓ 100 Bonus Spins on Sugar Pop

CLAIM BONUS

18+. New players only. 20 Free Spins on Take Olympus (Betsoft). Wagering 40x. Max bet €0.5. Max cashout €20. 1st deposit: 200% bonus up to €1,000 + 100 Free Spins on Sugar Pop. Bonus wagering 30x (bonus + deposit). FS winnings wagering 40x. Max bet €5. Max FS cashout €100. Valid for 10 days. Terms apply.

Exclusive

30 Free Spins on Registration

18+ | Terms & conditions apply. | 7Bit Casino

✓ Deep Sea (BGaming)
✓ Bonus Code: DEEPBIT
✓ 100% up to €400

CLAIM BONUS

18+. New players only. 30 Free Spins on Deep Sea (BGaming). Code: DEEPBIT. Wagering 45x. Max bet €1. Max cashout €25. 1st deposit: 100% bonus up to €800 + 100 Free Spins on Elvis Frog in Vegas. Bonus wagering 40x. FS winnings wagering 45x. Max bet €1. Terms apply.

Exclusive

50 Free Spins On Registration

18+ | Terms & conditions apply. | Ritzo Casino

✓ Book of Odin (TrueLab)
✓ 100% up to €250
✓ Weekly reload bonus

CLAIM BONUS

50 Free Spins on Book of Odin (TrueLab), no deposit, 45x wagering, max bet €5, max win €25. Welcome Bonus: 100 % up to €250, 45x wagering, max bonus bet €5, expires in 7 days. Max win from bonus: 5x deposit. Max withdrawal: €3,500.

100% up to €1000

18+ | Terms & conditions apply. | MonacoJack Casino

✓ 75 Bonus Spins
✓ €20 Minimum deposit
✓ Weekly reload bonus

CLAIM BONUS

18+. New players only. Welcome Bonus: 100% bonus up to €1,000 + 75 Bonus Spins, credited after the first deposit. Minimum deposit: €20. Bonus Spins are credited to the player’s account according to the applicable promotional conditions. Weekly reload bonuses may be available for eligible players. General Casino Bonus Terms & Conditions apply.

Exclusive

15 Free Spins On Registration

18+ | Terms & conditions apply.

✓ Fire In The Hole xBomb
✓ Bonus code: WIN10BB
✓ 100% up to €500

CLAIM BONUS

18+. New players only. Code: WIN10BB. 15 Free Spins on Fire In The Hole xBomb (Nolimit City), wagering 50x, max bet €5, max cashout €25. Welcome Bonus: 100% up to €500 on first deposit, min deposit €25, wagering 40x bonus, max bet €5, max win 5x the bonus amount, valid for 10 days. Terms apply.

Exclusive

150% up to €150

18+ | Terms & conditions apply. | CasinoVibes

✓ 50 Spins on Sakura Fortune
✓ Bonus code: GOODVIBES
✓ €10 Minimum deposit

CLAIM BONUS

18+. New players only. 150% up to €150 + 50 Bonus Spins on Sakura Fortune (spin value €0.20), code GOODVIBES, min deposit €10, wagering 35x bonus and FS winnings in 30 days, max bet €5 per spin / €0.50 per line. Not valid for crypto users. Terms apply.

125% up to €1,000

18+ | Terms & conditions apply.

✓ 40 Bonus Spins
✓ €20 Min. Deposit
✓ 5% Cashback

CLAIM BONUS

18+. New players only. 125% first deposit bonus up to €1000 + 40 Bonus Spins. Min. deposit €20. Wagering 35x (bonus + deposit) and 40x on Bonus Spins. Max bet €5. Bonus valid 10 days. Terms apply.

On this page

What is a 400% casino bonus How to spot a genuine 400% offer 400% deposit bonus 400% welcome bonus 400% match bonus explained 400% no wagering casino bonus Wagering in real numbers 400% vs 300% and 500% How to claim Our process FAQ

Quick overview

What is a 400% casino bonus?

A 400% casino bonus, also known as a 400 bonus casino or online casino 400% bonus offer, quintuples your deposit. Put in $100 and your account is credited with $400 in bonus funds, giving you $500 total to play with. It is the highest match percentage that regularly appears at reputable online casinos with fair terms, and that distinction matters more than the headline number.

The 400 percent casino bonus and 400% bonus casino format sits at an interesting position in the market. Below it, 100% to 300% bonuses are widely available with relatively standard terms. Above it, 500% and higher bonuses almost always come with extremely high wagering requirements, tight cashout caps, or crypto-only conditions that eliminate most players from actually benefiting. A well-structured 400% bonus at a quality operator is genuinely the sweet spot of the high-percentage bonus range.

A 400 percent bonus casino and 400% match bonus casino offer at 35x wagering on bonus only requires $14,000 in total bets on a $100 deposit. This sounds large, but compare it to a 500% bonus at the same rate requiring $17,500, the jump is significant. Staying at 400% with the right operator and the right terms delivers more real value than chasing higher percentages at casinos whose terms make the bonus virtually unclaimable.

What we verify

How to spot a genuine 400% casino bonus offer

Every casino 400% bonus in our list has been verified against the same criteria. The 400% headline is common, the terms behind it vary enormously. A 400% bonus with 20x wagering at a licensed operator is a completely different product from a 400% bonus with 60x wagering at an operator with unclear licensing. Here is what separates the offers worth claiming from the ones that only look good in the headline.

📋

Wagering basis confirmed

We verify whether wagering applies to the bonus only or to both bonus and deposit. On a $100 deposit at 35x, this difference is $14,000 versus $17,500 in required bets. All offers in our list display the basis clearly.

💰

Cashout cap in real numbers

A 400% bonus up to $800 with a $50 cashout cap delivers $50 maximum regardless of what you win. We only list 400 casino bonus offers where the cashout cap justifies the wagering at the stated terms.

🛡️

Licence verified

Every casino offering a 400% bonus in our list holds a current licence from a recognised authority, MGA, UKGC, Kahnawake, or equivalent. High-percentage bonuses attract more unlicensed operators. We check every one.

⏰

Expiry window checked

A 400% casino bonus with a 3-day expiry is almost impossible to clear. We only include offers with at least 7 days to clear wagering, and flag any offer with a window under 14 days specifically.

🎰

Game contribution confirmed

Slots at 100% contribution are non-negotiable for a 400% bonus to be claimable by most players. We check the full contribution table, not just slots, and note any significant exclusions alongside each offer.

🔑

Bonus codes active

Where a code is required to unlock the 400% offer, we verify it is active at time of publication. Expired codes that still appear on other sites are one of the most common sources of player frustration with high-percentage offers.

400% casino bonus genuine offer checklist licence wagering cashout cap BetterBonus

Deposit match format

400% deposit bonus casino

A 400% deposit bonus casino offer credits four dollars of bonus funds for every one dollar deposited, up to a stated cap. This is the most generous deposit match format that appears regularly at quality operators. The 400 deposit bonus casino format is most competitive at new casino launches and during limited acquisition windows, established operators rarely sustain 400% terms outside of targeted VIP promotions.

Deposit	400% bonus	Total to play	35x (bonus only)	Optimal use
$25	$100	$125	$3,500	Best value, manageable wagering
$50	$200	$250	$7,000	Strong play time, clearable in sessions
$100	$400	$500	$14,000	High value, plan sessions carefully
$200	$800 (if uncapped)	$1,000	$28,000	Only if cap is $400+ and wagering is confirmed bonus-only

The 400% deposit bonus rewards smaller deposits proportionally better than larger ones. A $25 deposit giving $100 bonus at 35x requires $3,500 in bets, achievable in a day's sessions on medium-stakes slots. A $100 deposit giving $400 bonus at 35x requires $14,000. The percentage is the same but the absolute wagering burden is four times larger. Start with the minimum effective deposit until you have verified the cashier, the withdrawal speed, and the support quality at any new casino.

New player offer

400% welcome bonus casino

A 400% welcome bonus casino offer is the highest-percentage match most mainstream operators make to a new account. It is almost always the best offer that casino will make to you at any point in your relationship with them. Reload bonuses, loyalty offers, and VIP promotions at the same casino are virtually never as generous as the 400% welcome offer.

The 400 welcome bonus casino format has a specific timing advantage. New casino launches that lead with a 400% welcome bonus are trying to compete with established operators for first registrations. This creates a window, typically the first 30 to 60 days of launch, where the 400% terms are genuinely competitive. Claiming a 400% first deposit bonus at a new casino during its launch window is almost always better value than claiming a lower-percentage offer at an established operator with identical wagering terms.

Formula for the 400% welcome bonus: optimal deposit = cashout cap divided by 4. If the cashout cap is $200 and the bonus is 400%, a $50 deposit gives you $200 bonus matching the cap exactly, requiring $7,000 in bets for a $200 maximum withdrawal. Depositing $100 gives you $400 bonus with the same $200 cap and requires $14,000 in bets. Half the deposit, half the wagering, identical maximum return. The formula works for every 400% offer regardless of how the cap is expressed.

400% welcome bonus casino optimal deposit formula cashout cap divided by 4 BetterBonus

How the 400% match works

400% match bonus casino explained

A 400% match bonus casino offer credits bonus funds equal to 400% of your deposit. Four dollars of bonus for every one deposited. The 400 match bonus casino is the highest-percentage format that regularly appears with fair terms at quality licensed operators. The casino bonus 400% structure is most commonly found at offshore-licensed operators and newer platforms competing aggressively for new players.

Understanding the online casino 400 bonus requires knowing one critical distinction that most players overlook: the difference between a 400% on first deposit only versus a 400% on the first two or three deposits as part of a package. A 400% match on the first deposit only gives you one large bonus to work with. A package spreading 400% across three deposits gives you three separate wagering challenges, which is typically harder to clear in total than one single larger bonus.

Match %	$100 deposit	Bonus	Total to play	35x bonus only	35x bonus + deposit
100%	$100	$100	$200	$3,500	$7,000
200%	$100	$200	$300	$7,000	$10,500
300%	$100	$300	$400	$10,500	$14,000
400%	$100	$400	$500	$14,000	$17,500
500%	$100	$500	$600	$17,500	$21,000

Keep what you win

400% no wagering casino bonus

A 400% no wagering casino bonus is a deposit match where winnings go directly to your real money balance with zero rollover. At the 400% level this is extremely rare, the combination of a large match percentage and no wagering represents significant operator exposure. When it does appear, the cashout cap is almost always strict, typically $50 to $100, but any winnings within that cap are immediately withdrawable after identity verification.

Even with a low cashout cap, a 400% no wagering bonus is worth more in expected value than a standard 400% bonus with high wagering. The absence of rollover means every dollar you win is genuinely yours up to the cap, rather than a notional figure that must survive thousands of bets at a 4% house edge before it can be accessed.

✓ No wagering 400%

400% no wagering bonus

Winnings go straight to real balance
No rollover required before withdrawal
No max bet restriction applies
Immediately accessible after KYC
Cashout cap typically $50 to $100

Standard 400%

Standard 400% bonus

Winnings credited as bonus funds first
Must wager 30x to 50x before withdrawal
Max bet restriction applies during wagering
House edge reduces balance during clearing
Cashout cap typically $200 to $800

For the full list of no wagering casino bonuses, see our free spins no wagering guide.

The numbers that matter

400% casino bonus wagering: what it looks like in practice

A 400% casino bonus produces larger wagering totals than lower-percentage formats at the same multiplier. The good news: modern slots clear wagering faster than table games, and tracking your progress in the casino's bonus dashboard means you always know exactly where you stand. Here are the most common 400% casino bonus scenarios in plain numbers.

Deposit	400% bonus	Wagering	Basis	Total bets	Sessions at $1/spin
$25	$100	20x	Bonus only	$2,000	~2,000 spins
$50	$200	30x	Bonus only	$6,000	~6,000 spins
$100	$400	35x	Bonus only	$14,000	~14,000 spins
$100	$400	35x	Bonus + deposit	$17,500	~17,500 spins
$100	$400	50x	Bonus only	$20,000	~20,000 spins

Slots with frequent base-game wins clear a 400% bonus faster than high-volatility jackpot titles. Low-to-medium volatility slots, titles like Starburst, Reactoonz, or Fishin' Frenzy, keep your balance moving and your wagering progress steady. High-volatility titles can produce dramatic swings that either finish the wagering in one session or exhaust the bonus balance before you clear. For a 400% bonus where the wagering total is substantial, consistent progress beats chasing one big win.

400% casino bonus wagering slots progress low volatility medium BetterBonus

Where 400% sits in the range

400% casino bonus vs 300% and 500%: the sweet spot explained

The 400% casino bonus occupies the top of the range where genuine value is still consistently available. Above 400%, most offers either carry punitive wagering requirements, crypto-only eligibility, or cashout caps that make the headline percentage largely irrelevant. Below 400%, 100% to 300% bonuses are more widely available with lower wagering but smaller starting balances. Here is how the formats compare with consistent terms.

Bonus type	$50 deposit gives	Total to play	35x bonus only	Worth claiming?
100% up to $50	$50 bonus	$100	$1,750	Yes, lowest wagering burden
200% up to $100	$100 bonus	$150	$3,500	Yes, good balance of value and wagering
300% up to $150	$150 bonus	$200	$5,250	Yes if cashout cap is $150+
400% up to $200	$200 bonus	$250	$7,000	Yes, sweet spot of range with good terms
500% up to $250	$250 bonus	$300	$8,750	Marginal, rarely available with fair terms
400% no wagering	$200 bonus	$250	$0	Yes, always best when available

For the complete percentage bonus comparison, see our 100% casino bonus, 200% casino bonus, 300% casino bonus, and 500% casino bonus guides. Full casino bonus overview at our casino bonus guide.

Getting the most from your claim

How to claim a 400% casino bonus

Verify the wagering basis and cashout cap before registering

Ask live chat two questions: “Does wagering apply to the bonus only or bonus plus deposit?” and “What is the cashout cap on the 400% bonus?” Both answers determine the real value of the offer. All casinos in our list have been asked these questions before inclusion.

Complete identity verification immediately after registering

Upload your ID and proof of address before making your first deposit. KYC before depositing means your first withdrawal is processed without delays. At a new casino offering a 400% bonus, this step is especially important, newer operators sometimes have slower initial KYC queues.

Enter a bonus code during registration if one is listed above

Most 400% casino bonuses activate automatically via tracked links. Where a code is required it is listed alongside the offer above. Codes must be entered during registration, most operators cannot apply them after your account is created.

Deposit the optimal amount: cashout cap divided by 4

If the cashout cap is $200, deposit $50 exactly. This gives you $200 bonus matching the cap and produces $7,000 in wagering at 35x rather than $14,000 if you deposited $100. Confirm the 400% bonus has activated in your account before wagering a single spin.

Choose medium-volatility slots and track wagering progress

Play eligible slots at 100% contribution. Keep every bet at or below the stated max bet limit. Use the casino's bonus progress tracker in your account to monitor how close you are to clearing. Break your sessions into manageable time blocks rather than playing in one long session.

How we build this list

How BetterBonus evaluates 400% casino bonuses

Every 400% casino bonus in the list above is checked against the same criteria before inclusion: wagering requirement, wagering basis, cashout cap, max bet restriction, game contribution rates, payment method eligibility, expiry window, active bonus code status, and licence jurisdiction. We read the full terms of each 400 casino bonus offer and update the list when operators change their promotions. High-percentage bonuses attract more operators with misleading terms, our verification process is deliberately thorough at this level.

For related bonus guides: casino bonus guide, 300% casino bonus, 500% casino bonus, no deposit bonus, free spins no deposit, and new online casinos. Full methodology at betterbonus.com/methodology.

Common questions

400% casino bonus, frequently asked questions

What makes a 400% casino bonus worth claiming?

A 400 casino bonus is worth claiming when the cashout cap is at least four times your planned deposit, the wagering applies to bonus only rather than bonus plus deposit, the expiry window is at least 7 days, and the operator holds a current licence from a recognised authority. A 400% bonus with a $50 cashout cap on a $100 deposit is not worth claiming regardless of how generous the headline looks, the cap limits your return before you start.

What happens if I exceed the max bet with a 400% bonus active?

The casino voids the entire 400% bonus retroactively including all winnings accumulated to that point. This is standard practice across all licensed operators and applies even on a single spin that exceeded the limit. Check the max bet restriction, typically $5 to $10 per spin, before placing your first bet with any active bonus and keep every bet at or below that limit until wagering is fully cleared.

What is the optimal deposit for a 400% casino bonus?

Divide the cashout cap by 4. If the cashout cap is $200 and the bonus is 400%, deposit $50 to receive exactly $200 bonus matching the cap, requiring $7,000 in bets at 35x. Depositing $100 gives $400 bonus but the cap is still $200, doubling your wagering with no additional withdrawal potential. The formula is consistent for every 400% deposit bonus casino offer regardless of how the terms are presented.

Why is 400% the sweet spot compared to 500% bonuses?

A 400% match bonus casino offer regularly appears with fair terms at licensed operators, reasonable wagering, real cashout caps, and clear game eligibility. Above 400%, the 500% and higher bonuses are almost always accompanied by very high wagering requirements, crypto-only conditions, or cashout caps that make the headline percentage misleading. The 400% casino bonus is the highest match percentage where the underlying offer is consistently worth evaluating on its own merits.

What is a 400% first deposit bonus?

A 400% first deposit bonus is a welcome offer that credits four dollars of bonus funds for every one dollar deposited on your first transaction at a new casino. The 400 first deposit bonus casino format is the best offer that operator will make to your account. Once claimed, reload bonuses at the same casino are never as generous. New casino launches in their first 30 to 60 days consistently offer their best 400% first deposit bonus terms before reverting to standard promotions.

Can I use a 400% casino bonus on live dealer games?

Most casino 400% bonus offers allow live dealer games but at a reduced contribution rate, typically 10% or less. This means wagering $100 on live blackjack only counts as $10 toward clearing a 400% bonus requirement. For a $400 bonus at 35x, using live tables exclusively would require $140,000 in bets rather than $14,000. Play slots at 100% contribution to clear the wagering, then switch to live dealer games once the bonus is fully cleared.

What is a 400% welcome bonus casino offer?

A 400% welcome bonus casino offer is exclusively for new players on their first deposit. It is the highest-value promotional offer that casino makes to any account and is almost always the best terms they will offer at any point. The 400 welcome bonus casino format is most common at new casino launches and during limited acquisition campaigns when operators need to stand out in a competitive market. Claim it during a casino's launch window for the most competitive version of the offer.

How do I find the best 400 casino bonus right now?

The ranked list at the top of this page shows every verified 400 casino bonus currently active. Each offer has been checked for wagering basis, cashout cap, expiry window, game eligibility, active bonus code status, and licence. The list is updated when operators change their 400% terms or new launch offers become available. For the broadest comparison of all bonus types and percentages, see our casino bonus guide.

Erik King

Editor in Chief | Casino Expert

I'm Erik King, an online casino expert and the founder of Zamedia N.V. Over the years, I've created leading casino comparison sites such as Zamsino and BetterBonus, focusing heavily on detailed casino reviews, transparent bonus comparisons, and promoting responsible gambling. My goal is always to help players around the world find trusted casinos and the best bonuses.

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