Why do online casinos give out 400% first deposit bonuses?

Online casinos give out 400% first deposit bonuses in order to encourage casino players to try out their platforms and consider playing there in the longer term.

Are 400% deposit bonus casino sites safe?

Yes, 400% deposit bonus casino sites are safe, as long as they're licensed and regulated by a reputable body. As well as having passed our test for safety and security, each of the 400% deposit bonus casinos we've recommended here are licensed and regulated by the Malta Gaming Authority (MGA) and/or another reputable gaming authority.

Can I keep winnings from a 400% casino deposit bonus?

Yes, you can keep your winnings from a 400% casino deposit bonus, as long as you've fulfilled the terms and conditions of the promotion.

Can I get free spins as part of the 400% casino bonus?

Yes, you can get free spins as part of a 400% casino bonus if you choose a welcome package that bundles the 400% deposit match with bonus spins.

Can I win real money with a casino 400% bonus?

Yes, you can win real money with a casino 400% bonus, just as you can with any other casino bonus offer.

400% Deposit Bonus Casinos - page 18

Alina Anisimova, Isobel Coughlan

Updated:25.6.2026

392
Urho Kasino
Launched 2025
100% up to 500€
Main details
Bonus type1st deposit bonus+
Urho Kasino matches your deposit 100% up to €500 as a deposit bonus. Deposit at least €20 to claim it, no bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Wagering40 x (D+B)+
Wagering on the cash bonus is 40x on your deposit plus bonus, which is on the high side. With a €100 deposit you get a €100 bonus, so you wager €100 + €100 = €200, and €200 x 40 = €8,000 in total wagers.
Urho Kasino Bonuses
18+ Full Terms Apply. Play Responsibly.

393
Moonwin Casino
100% up to 5000€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus, which gives you a 100% match up to €5,000 on your deposit. You also get 100 free spins on Wild Cash at €0.10 per spin, worth a total of €10. No bonus code is needed, the bonus activates on your qualifying deposit at Moonwin Casino.
Minimum deposit20€
Bonuses & Restrictions
Max bet5€
Time limit5 days
Wagering40 x B+
The wagering requirement is 40x on the bonus, which is above average. With a €100 deposit you get a €100 bonus, and €100 x 40 = €4,000 in wagers. The 100 free spins carry 40x wagering on their winnings.
Moonwin Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
394
Mirax Casino
Crypto Accepted
100% up to 400€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Mirax Casino, which gives you a 100% match up to €400 on your deposit. You also get 100 free spins worth €10 in total. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit3 days
Wagering35 x (D+B)+
Wagering is 35x on your deposit plus bonus, which sits in the standard range. With a €100 deposit at 100%, you get a €100 bonus, so 100 + 100 = €200 x 35 = €7,000 in wagers. The 100 free spins carry 45x wagering on their winnings.
Mirax Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
395
Reels.io Casino
Exclusive BonusLaunched 2025Crypto Accepted
100% up to USDT 200 + 50 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least 20 USDT to claim this deposit bonus, which gives you a 100% match up to 200 USDT on your deposit. You also get 50 free spins on Zeus vs. Hades, worth a total of 5 USDT. No bonus code is needed, the bonus activates on your qualifying deposit at Reels.io Casino.
Minimum deposit$20
Bonuses & Restrictions
Time limit7 days
Wagering25 x (D+B)+
The wagering on the 100% match bonus is 25x on your deposit plus bonus, which is below average. A €100 deposit gives you a €100 bonus, and €100 + €100 = €200 x 25 = €5,000 in wagers. The 50 free spins carry 25x wagering on their winnings.
Reels.io Casino Bonuses
18+ Full Terms Apply. Play Responsibly. -Deposit 20–300 USDT: 100% bonus up to 200 USDT, max. bonus redeemable – x10 from bonus. Wager: x25. -Deposit 300–1000 USDT: 75% bonus up to 500 USDT, max. bonus redeemable – x15 from bonus.Wager: x20. -Deposit 1000–3000 USDT: 50% bonus up to 1000 USDT, max. bonus redeemable – x20 from bonus.Wager: x20. Deposit over 3000 USDT: 50% bonus, no max bonus, max. bonus redeemable – Unlimited.Wager: x10.
396
Metaspins Casino
Crypto Accepted
100% up to BTC 1
Main details
Bonus type1st deposit bonus+
No minimum deposit is required to claim this deposit bonus. You get a 100% match up to 1 BTC on your deposit at Metaspins Casino. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum depositBTC 0
Bonuses & Restrictions
Time limit7 days
Wagering25 x (D+B)+
The wagering requirement is 25x on your deposit plus bonus, which is below average. A ₿100 deposit gives you a ₿1 bonus (the maximum), and ₿100 + ₿1 = ₿101 x 25 = ₿2,525 in wagers.
Metaspins Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
397
Spinanga Casino
Crypto Accepted
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus, which gives you a 100% match up to €500 on your deposit at Spinanga Casino. You also get 200 free spins worth €20 in total. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit30 days
Wagering35 x (D+B)+
Wagering is 35x on your deposit plus bonus, which sits in the standard range. With a €100 deposit at 100%, you get a €100 bonus, so €100 + €100 = €200 x 35 = €7,000 in wagers. The bonus is sticky: you play with it but only withdraw the winnings. The 200 free spins carry 35x wagering on their winnings.
Spinanga Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
398
Cleobetra Casino
Launched 2025Crypto Accepted
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus, which gives you a 100% match up to €500 on your deposit plus 200 free spins. No bonus code is needed, the bonus activates on your qualifying deposit at Cleobetra Casino.
Minimum deposit20€
Bonuses & Restrictions
Time limit10 days
Wagering35 x (D+B)+
The wagering on this bonus is in the standard range at 35x on both your deposit and bonus. With a €100 deposit at 100%, you get a €100 bonus, so you wager €100 + €100 = €200 x 35 = €7,000 in total before you can withdraw. The 200 free spins carry 40x wagering on their winnings.
Cleobetra Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
399
Casinado Casino
Crypto Accepted
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Casinado Casino matches your deposit 100% up to €500 and gives you 200 free spins with your deposit bonus. Deposit at least €20 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Max bet5€
Time limit10 days
Wagering35 x (D+B)+
Wagering on the cash bonus is 35x on your deposit plus bonus, which sits in the standard range. With a €100 deposit you get a €100 bonus, so €100 + €100 = €200 x 35 = €7,000 in wagers. The 200 free spins carry 40x wagering on their winnings. Max bet while wagering is €5 per round. You have 10 days to clear it.
Casinado Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
400
Millioner Casino
Launched 2025Crypto Accepted
100% up to 1000€ + 150 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus from Millioner Casino. You get a 100% match up to €1,000 plus 150 free spins on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit, and winnings from the bonus are capped at €10,000.
Minimum deposit20€
Bonuses & Restrictions
Max bet100€
Time limit10 days
Wagering35 x (D+B)+
The 35x wagering on this 100% match sits in the standard range and applies to both your deposit and bonus together. With a €100 deposit you get a €100 bonus, so €100 + €100 = €200 x 35 = €7,000 in wagers. The 150 free spins carry 40x wagering on their winnings.
Millioner Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
401
Cosmobet
Crypto Accepted
100% up to 500€ + 250 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus on Cosmobet, which gives you a 100% match up to €500 on your deposit. You also get 250 free spins worth €25 in total. Use bonus code WELCOME when depositing.
Minimum deposit20€
Bonuses & Restrictions
Max bet5€
Time limit7 days
Wagering30 x (D+B)+
The wagering requirement is 30x on your deposit plus bonus, which sits in the standard range. With a €100 deposit at 100%, you get a €100 bonus, so €100 + €100 = €200 x 30 = €6,000 in wagers. The 250 free spins carry 30x wagering on their winnings.
Cosmobet Bonuses
18+ Full Terms Apply. Play Responsibly.
402
WinSpirit Casino
Crypto Accepted
100% up to 200€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus, which gives you a 100% match up to €200 on your deposit at WinSpirit Casino. You also get 100 free spins. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Max bet5€
Time limit31 days
Wagering40 x B+
Wagering is 40x on the bonus amount, which is above average. With a €100 deposit at 100%, you get a €100 bonus, and €100 x 40 = €4,000 in wagers. The 100 free spins carry 40x wagering on their winnings.
WinSpirit Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
403
Betjordan Casino
Launched 2025
100% up to 5000€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Betjordan Casino matches your deposit 100% up to €5,000 and gives you 100 free spins worth €10 in total. Deposit at least €30 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit30€
Bonuses & Restrictions
Max bet5€
Wagering40 x B+
Wagering on the 100% cash bonus at Betjordan Casino is 40x the bonus amount, which is above average. A €100 deposit gives you a €100 bonus, and €100 x 40 = €4,000 in wagers. The 100 free spins carry 40x wagering on their winnings, and max bet while wagering is €5 per round.
Betjordan Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
404
Legiano Casino
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus from Legiano Casino, which gives you a 100% match up to €500 on your deposit. You also get 200 bonus spins worth €20 in total. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Max bet5€
Time limit10 days
Wagering35 x (D+B)+
Wagering is 35x on your deposit plus bonus, which sits in the standard range. With a €100 deposit at 100%, you get a €100 bonus, and €100 + €100 = €200 x 35 = €7,000 in wagers. The 200 free spins carry 40x wagering on their winnings.
Legiano Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
405
Malina Casino
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus, which gives you a 100% match up to €500 on your deposit plus 200 free spins. No bonus code is needed, the bonus activates on your qualifying deposit at Malina Casino.
Minimum deposit20€
Bonuses & Restrictions
Wagering35 x (D+B)+
The wagering requirement is 35x on your deposit plus bonus, which sits in the standard range. With a €100 deposit at 100%, you get a €100 bonus, so €100 + €100 = €200 x 35 = €7,000 in wagers. The 200 free spins have 0x wagering on winnings.
Malina Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
406
Vauhdikas Casino
100% up to 200€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €25 to claim this deposit bonus, which gives you a 100% match up to €200 on your deposit. You also get 100 free spins worth €0.10 each, for a total of €10 in spin value. No bonus code is needed, the bonus activates on your qualifying deposit at Vauhdikas Casino.
Minimum deposit25€
Bonuses & Restrictions
Max bet5€
Time limit7 days
Wagering40 x B+
The wagering requirement is 40x on the bonus, which is above average. With a €100 deposit you get a €100 bonus, and €100 x 40 = €4,000 in wagers. The 100 free spins carry 40x wagering on their winnings.
Vauhdikas Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
407
Zotabet
Crypto Accepted
100% up to 6000€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus, which gives you a 100% match up to €6,000 on your deposit. Use bonus code WELCOME when depositing and you get 100 free spins worth a total of €10.
Minimum deposit20€
Bonuses & Restrictions
Wagering40 x (D+B)+
Wagering is 40x on your deposit plus bonus, which is above average. A €100 deposit gives you a €100 bonus, and €100 + €100 = €200 x 40 = €8,000 in wagers. The bonus is sticky: you play with it but only withdraw the winnings. The 100 free spins carry 40x wagering on their winnings.
Zotabet Bonuses
18+ Full Terms Apply. Play Responsibly.
408
Jackpotter Casino
Launched 2025Crypto Accepted
100% up to 1000€
Main details
Bonus type1st deposit bonus+
Deposit at least €10 to claim this deposit bonus at Jackpotter Casino. You get a 100% match up to €1,000 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit. Winnings from the bonus are capped at €1,000.
Minimum deposit10€
Bonuses & Restrictions
Time limit1 day
Wagering35 x B+
The wagering requirement is 35x on the bonus amount, which sits in the standard range. With a €100 deposit at 100%, you get a €100 bonus, and €100 x 35 = €3,500 in wagers.
Jackpotter Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
409
7Bit Casino
Crypto Accepted
100% up to 800€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €40 to claim this deposit bonus at 7Bit Casino. You get a 100% match up to €800 on your deposit plus 100 free spins. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit40€
Bonuses & Restrictions
Max bet2€
Time limit14 days
Wagering35 x B+
The wagering requirement is 35x on the bonus, which sits in the standard range. With a €100 deposit you get a €100 bonus, and €100 x 35 = €3,500 in wagers. The 100 free spins carry 35x wagering on their winnings.
7Bit Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
410
Posido Casino
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Posido Casino, which gives you a 100% match up to €500 on your deposit. You also get 200 free spins worth €20 in total. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit10 days
Wagering35 x (D+B)+
The wagering requirement is 35x on your deposit plus bonus, which sits in the standard range. With a €100 deposit you get a €100 bonus, and €100 + €100 = €200 x 35 = €7,000 in wagers. The 200 free spins carry 40x wagering on their winnings.
Posido Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
411
Lucky Dreams
Crypto Accepted
100% up to 500€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €30 to claim this deposit bonus at Lucky Dreams, which gives you a 100% match up to €500 on your deposit. You also get 100 free spins worth €10 in total as part of this offer. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit30€
Bonuses & Restrictions
Time limit7 days
Wagering40 x B+
The €100% bonus has 40x wagering on the bonus amount, which is above average. A €100 deposit gives you a €100 bonus, and €100 x 40 = €4,000 in wagers. The 100 free spins carry 40x wagering on their winnings.
Lucky Dreams Bonuses
18+ Full Terms Apply. Play Responsibly.
412
Voodoo Casino
Crypto Accepted
100% up to 250€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Voodoo Casino. You get a 100% match up to €250 on your deposit, plus 100 free spins worth €10 in total. Use bonus code LOA1 when depositing.
Minimum deposit20€
Bonuses & Restrictions
Time limit7 days
Wagering40 x B+
The wagering requirement is 40x on the bonus amount, which is above average. With a €100 deposit at 100%, you get a €100 bonus, and €100 x 40 = €4,000 in wagers. The 100 free spins carry 40x wagering on their winnings.
Voodoo Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
413
Tip-Top Casino
Crypto Accepted
100% up to 500€
Main details
Bonus type1st deposit bonus+
Tip-Top Casino matches your deposit 100% up to €500 on your qualifying deposit. Deposit at least €20 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit7 days
Wagering40 x (D+B)+
Wagering is 40x on your deposit plus bonus, which is on the above average side. On a €100 deposit you get a €100 bonus, so €100 + €100 = €200 x 40 = €8,000 in wagers. You have 7 days to clear it.
Tip-Top Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
414
SmokAce Casino
Crypto Accepted
100% up to 500€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €40 to claim this deposit bonus, which gives you a 100% match up to €815 on your deposit. You also get 100 free spins on Le Cowboy worth €10 in total, with no bonus code needed, the bonus activates on your qualifying deposit. This bonus is for Canadian players only.
Minimum deposit25€
Bonuses & Restrictions
Time limit10 days
Wagering45 x B+
You must wager the bonus amount 45x, which is on the high side. With a €100 deposit at 100%, you get a €100 bonus, and €100 x 45 = €4,500 in wagers. The 100 free spins carry 40x wagering on their winnings.
SmokAce Casino Bonuses
18+ Full Terms Apply. Play Responsibly.

Sources

Malta Gambling Authority