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 22

Alina Anisimova, Isobel Coughlan

Updated:25.6.2026

484
ReveryPlay
Launched 2025Crypto Accepted
100% up to 1000€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at ReveryPlay, where you get a 100% match up to €1,000 on your deposit. You also get 100 free spins worth €0.10 each, for a total of €10, on Big Tuna Bonanza (BGaming). No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit7 days
Wagering40 x B+
The wagering on the cash bonus 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.
ReveryPlay Bonuses
18+ Full Terms Apply. Play Responsibly.

485
Betrepublic Casino
New 2026Crypto Accepted
100% up to 500€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus from Betrepublic Casino. You get a 100% match up to €500 on your deposit plus 100 free spins on Riches Express. No bonus code is needed, the bonus activates on your qualifying deposit.
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. A €100 deposit gives you a €100 bonus, so €100 + €100 = €200 x 35x = €7,000 in wagers. The 100 free spins carry 40x wagering on their winnings.
Betrepublic Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
486
Mammona Kasino
100% up to 500€ + 50 free spins
Main details
Bonus type1st deposit bonus+
Mammona Kasino matches your deposit 100% up to €500 and gives you 50 free spins worth €5. 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 limit30 days
Wagering40 x (D+B)+
Wagering is 40x on your deposit plus bonus, which sits in the above average range. With a €100 deposit you get a €100 bonus, so €100 + €100 = €200 x 40 = €8,000 in wagers. The 50 free spins carry 40x wagering on their winnings, you have 30 days to clear it, and max bet while wagering is €5 per round.
Mammona Kasino Bonuses
18+ Full Terms Apply. Play Responsibly.
487
Richville Casino
Launched 2025Crypto Accepted
100% up to 1000€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Richville Casino matches your deposit 100% up to €1,000 and gives you 100 free spins. Deposit at least €20 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit10 days
Wagering40 x B+
Wagering is 40x on the bonus amount, which is on the high side. A €100 deposit gives you a €100 bonus, and €100 x 40 = €4,000 in wagers. The 100 free spins carry 0x wagering on their winnings.
Richville Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
488
RioAce Casino
Launched 2025Crypto Accepted
100% up to 500€ + 100 free spins
Main details
Bonus type1st deposit bonus+
RioAce Casino matches your deposit 100% up to €500 and adds 100 free spins. Deposit at least €25 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit25€
Bonuses & Restrictions
Max bet5€
Time limit10 days
Wagering40 x B+
Wagering on the cash bonus is 40x on the bonus amount, which is on the above average side. 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. You have 10 days to clear it.
RioAce Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
489
Roby Casino
Crypto Accepted
100% up to 1000€ + 250 free spins
Main details
Bonus type1st deposit bonus+
Roby Casino matches your deposit 100% up to €1,000 and gives you 250 free spins worth €25. Deposit at least €20 to claim it. 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 you get a €100 bonus, so you wager €100 + €100 = €200 x 35 = €7,000 in total bets, and you have 3 days to clear it. The 250 free spins carry 40x wagering on their winnings.
Roby Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
490
RokuBet
Crypto Accepted
100% up to 500€
Main details
Bonus type1st deposit bonus+
RokuBet matches your deposit 100% up to €500 as a straight 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
Time limit7 days
Wagering40 x B+
RokuBet gives you a 100% bonus, and 40x wagering applies to the bonus amount only, which is on the above average side. A €100 deposit gives you a €100 bonus, and €100 x 40 = €4,000 in wagers. You have 7 days to clear it.
RokuBet Bonuses
18+ Full Terms Apply. Play Responsibly.
491
Royalist Play Casino
100% up to 200€
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Royalist Play Casino. You get a 100% match up to €200 on your deposit. Use bonus code WELCOME200 when depositing.
Minimum deposit20€
Bonuses & Restrictions
Time limit21 days
Wagering40 x (D+B)+
The 40x wagering on this offer is above average and applies to both your deposit and the bonus. With a €100 deposit at 100%, you get a €100 bonus, so you wager (€100 + €100) = €200 x 40 = €8,000 in total before you can withdraw.
Royalist Play Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
492
Slots Palace Casino
100% up to 750€
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Slots Palace Casino. You get a 100% match up to €750 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Wagering30 x (D+B)+
Wagering is 30x on your deposit plus bonus, which sits in the standard range. A €100 deposit gives you a €100 bonus, and €100 + €100 = €200 x 30 = €6,000 in wagers. The bonus is sticky: you play with it but only withdraw the winnings.
Slots Palace Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
493
Slotlounge
Launched 2025Crypto Accepted
100% up to 3000€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Slotlounge matches your deposit 100% up to €3,000 and gives you 200 free spins on Book of Cats (BGaming). Deposit at least €20 to claim it and use bonus code FIRST when depositing.
Minimum deposit20€
Bonuses & Restrictions
Max bet7.5€
Time limit7 days
Wagering40 x (D+B)+
Wagering is 40x on your deposit plus bonus, which is above average. A €100 deposit gives you a €100 bonus, so €100 + €100 = €200 x 40 = €8,000 in wagers. The 200 free spins carry 40x wagering on their winnings. Max bet while wagering is €7.5 per round. You have 7 days to clear it.
Slotlounge Bonuses
18+ Full Terms Apply. Play Responsibly.
494
Spin Samurai Casino
Crypto Accepted
100% up to 650€ + 50 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €10 to claim this deposit bonus at Spin Samurai Casino. You get a 100% match up to €650 on your deposit, plus 50 free spins worth €5 in total. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit10€
Bonuses & Restrictions
Time limit7 days
Wagering40 x B+
The wagering on the cash bonus 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 50 free spins carry 45x wagering on their winnings.
Spin Samurai Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
495
Slotuna Casino
Crypto Accepted
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €10 to claim this deposit bonus, 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 deposit10€
Bonuses & Restrictions
Time limit10 days
Wagering35 x (D+B)+
Wagering is 35x on your deposit plus bonus, which sits in the standard range. A €100 deposit gives you a €100 bonus, and €100 + €100 = €200 x 35 = €7,000 in wagers. The 200 free spins carry 40x wagering on their winnings.
Slotuna Casino Bonuses
18+ Full Terms Apply. Play Responsibly. 5
496
SG Casino
Crypto Accepted
100% up to 500€
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus from SG Casino. You get a 100% match up to €500 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit10 days
Wagering35 x (D+B)+
The 35x wagering on this welcome bonus sits in the standard range for Canada. With a €100 deposit you get a €100 bonus, and €100 + €100 = €200 x 35 = €7,000 in wagers before you can withdraw.
SG Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
497
Spinch Casino
Crypto Accepted
100% up to 2000€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Spinch Casino matches your deposit 100% up to €2,000 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
Time limit14 days
Wagering40 x (D+B)+
Wagering on the cash bonus is 40x on your deposit plus bonus, which is on the above average side. With a €100 deposit you get a €100 bonus, so €100 + €100 = €200 x 40 = €8,000 in wagers. You have 14 days to clear it. The 100 free spins carry 30x wagering on their winnings.
Spinch Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
498
Starzino Casino
Crypto Accepted
100% up to 500€
Main details
Bonus type1st deposit bonus+
Starzino Casino matches your deposit 100% up to €500 as a regular deposit bonus. Deposit at least €30 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit30€
Bonuses & Restrictions
Time limit7 days
Wagering40 x B+
Starzino Casino gives you a 100% cash bonus with 40x wagering on the bonus amount, which is on the above average side. With a €100 deposit you get a €100 bonus, and €100 x 40 = €4,000 in wagers. You have 7 days to clear it.
Starzino Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
499
StayCasino
100% up to 1000€ + 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 €1,000 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 limit14 days
Wagering40 x B+
The wagering on this bonus is 40x on the bonus amount, 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.
StayCasino Bonuses
18+ Full Terms Apply. Play Responsibly.
500
Taikawin Casino
Launched 2025
100% up to 500€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Taikawin Casino matches your deposit 100% up to €500 and gives you 100 free spins on Game Gates of Olympus 1000, worth €10 in total. Deposit at least €25 to claim it and use bonus code TAIKA when depositing.
Minimum deposit25€
Bonuses & Restrictions
Wagering40 x (D+B)+
Wagering is 40x on your deposit plus bonus, which is on the high side. With a €100 deposit you get a €100 bonus, so €100 + €100 = €200 x 40 = €8,000 in wagers. The 100 free spins carry 40x wagering on their winnings.
Taikawin Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
501
TikiTaka Casino
Crypto Accepted
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
TikiTaka Casino matches your deposit 100% up to €500 and gives you 200 free spins worth €20 in total. Deposit at least €10 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit10€
Bonuses & Restrictions
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 you get a €100 bonus, so €100 + €100 = €200 x 35 = €7,000 in wagers. You have 10 days to clear it, and the 200 free spins carry 40x wagering on their winnings.
TikiTaka Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
502
Ultra Casino
100% up to 200€ + 20 free spins
Main details
Bonus type1st deposit bonus+
Ultra Casino matches your deposit 100% up to €200 and gives you 20 free spins worth €2 in total. Deposit at least €20 and use bonus code ULTRA1 when depositing to claim it on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit3 days
Wagering35 x B+
Wagering is 35x on the bonus amount, which sits in the standard range. With a €100 deposit you get a €100 bonus, and €100 x 35 = €3,500 in wagers. You have 3 days to clear it, and the 20 free spins carry 35x wagering on their winnings.
Ultra Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
503
Winmaker Casino
Crypto Accepted
100% up to 1000€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Winmaker Casino, which gives you a 100% match up to €1,000 on your deposit. Use bonus code WM2ND when depositing, and you get 100 free spins worth €10 in total.
Minimum deposit20€
Bonuses & Restrictions
Time limit7 days
Wagering40 x B+
The wagering on the cash bonus 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.
Winmaker Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
504
55Bet Casino
Crypto Accepted
100% up to 500€
Main details
Bonus type1st deposit bonus+
55Bet Casino matches your deposit 100% up to €500 as a straight 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
Time limit30 days
Wagering35 x B+
Wagering is 35x on the bonus amount, which sits in the standard range. With a €100 deposit you get a €100 bonus, and €100 x 35x = €3,500 in wagers. You have 30 days to clear it.
55Bet Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
505
Casinova 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 at Casinova Casino, which gives you a 100% match up to €500 on your deposit. You also get 200 free spins worth €20 in total, and 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)+
The wagering on the cash bonus is in the standard range at 35x on both your deposit and bonus. 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.
Casinova Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
506
Vinyl Casino
Crypto Accepted
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €10 to claim this deposit bonus at Vinyl 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 deposit10€
Bonuses & Restrictions
Time limit7 days
Wagering35 x (D+B)+
The wagering on this bonus sits in the standard range at 35x on your deposit plus bonus. With a €100 deposit, you get a €100 bonus, so €100 + €100 = €200 x 35 = €7,000 in wagers. The 200 free spins carry 35x wagering on their winnings.
Vinyl Casino Bonuses
18+ Full Terms Apply. Play Responsibly.

Sources

Malta Gambling Authority