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
RokuBet
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.

485
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.
486
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.
487
Slotlounge
Launched 2025
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.
488
Spin Samurai Casino
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.
489
Slotuna Casino
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
490
SG Casino
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.
491
Spinch Casino
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.
492
Starzino Casino
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.
493
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.
494
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.
495
TikiTaka Casino
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.
496
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.
497
Winmaker Casino
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.
498
55Bet Casino
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.
499
Casinova Casino
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.
500
Vinyl Casino
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.
501
The Slotz Casino
Launched 2025
100% up to 800€ + 300 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 €800 on your deposit. You also get 300 free spins on Big Bass Splash. No bonus code is needed, the bonus activates on your qualifying deposit at The Slotz Casino.
Minimum deposit20€
Bonuses & Restrictions
Max bet5€
Time limit10 days
Wagering30 x B+
The wagering requirement on the 100% bonus is 30x on the bonus only, which sits in the standard range. With a €100 deposit you get a €100 bonus, and €100 x 30 = €3,000 in wagers. The 300 free spins carry 30x wagering on their winnings.
The Slotz Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
502
Luckyelf Casino
100% up to 100€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Luckyelf Casino. You get a 100% match up to €100 on your deposit and 100 free spins worth a total of €10. Use bonus code ELF1 when depositing.
Minimum deposit20€
Bonuses & Restrictions
Time limit14 days
Wagering40 x (D+B)+
The wagering is 40x on your deposit plus bonus, which is above average. With a €100 deposit at 100% 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.
Luckyelf Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
503
FatPirate Casino
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
FatPirate Casino matches your deposit 100% up to €500 and gives you 200 free spins worth €20 in total. 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 (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, and €200 x 35 = €7,000 in wagers. The 200 free spins carry 40x wagering on their winnings.
FatPirate Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
504
Booms.bet
100% up to 500€
Main details
Bonus type1st deposit bonus+
Booms.bet matches your deposit 100% up to €500 as a 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
Max bet5€
Time limit7 days
Wagering40 x B+
Wagering on the cash bonus is 40x the bonus amount, which is on the high side. With a €100 deposit you get a €100 bonus, and €100 x 40 = €4,000 in wagers. Max bet while wagering is €5 per round, and you have 7 days to clear it.
Booms.bet Bonuses
18+ Full Terms Apply. Play Responsibly.
505
RTBET
100% up to 750€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €30 to claim this deposit bonus from RTBET, which gives you a 100% match up to €750 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 deposit30€
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 for this type of offer. With a €100 deposit 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.
RTBET Bonuses
18+ Full Terms Apply. Play Responsibly.
506
JVSpinbet
Exclusive Bonus
100% up to 390€ + 30 free spins
Main details
Bonus type1st deposit bonus+
JVSpinbet matches your deposit 100% up to €390 and adds 30 free spins. Deposit at least €10 to claim it and use bonus code MRGAMBLE when depositing.
Minimum deposit10€
Bonuses & Restrictions
Time limit7 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. The 30 free spins carry 0x wagering on their winnings.
JVSpinbet Bonuses
18+ Full Terms Apply. Play Responsibly.

Sources

Malta Gambling Authority