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 17

Alina Anisimova, Isobel Coughlan

Updated:25.6.2026

369
Slotozen Casino
100% up to 300€ + 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 €300 on your deposit at Slotozen Casino. You also get 100 free spins worth €10 in total, and no bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit7 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, and €100 + €100 = €200 x 40 = €8,000 in wagers. The 100 free spins carry 40x wagering on their winnings.
Slotozen Casino Bonuses
18+ Full Terms Apply. Play Responsibly.

370
SlotsMagic
100% up to 100€ + 50 free spins
Main details
Bonus type1st deposit bonus+
SlotsMagic matches your deposit 100% up to €100 and adds 50 free spins. Deposit at least €10 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit10€
Bonuses & Restrictions
Wagering40 x (D+B)+
SlotsMagic uses 40x wagering 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 50 free spins carry 0x wagering on their winnings.
SlotsMagic Bonuses
18+ Full Terms Apply. Play Responsibly.
371
Spinalto 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, which gives you a 100% match up to €500 on your deposit. You also get 100 free spins on Chaos Crew 3, worth €10 in total. No bonus code is needed, the bonus activates on your qualifying deposit, and winnings from the bonus are capped at €5,000.
Minimum deposit20€
Bonuses & Restrictions
Time limit15 days
Wagering40 x B+
The wagering requirement is 40x on the bonus, 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.
Spinalto Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
372
Spinjo 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 from Spinjo Casino, which gives you a 100% match up to €1,000 on your deposit. You also get 100 free spins on Book of the Fallen, worth €10 in total. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit3 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.
Spinjo Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
373
Spinstar.bet
Crypto Accepted
100% up to 500€ + 75 free spins
Main details
Bonus type1st deposit bonus+
Spinstar.bet matches your deposit 100% up to €500 and gives you 75 free spins on Sweet Bonanza by Pragmatic Play, worth €7.50 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
Max bet5€
Wagering50 x (D+B)+
Wagering on the cash bonus at Spinstar.bet is 50x 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 50 = €10,000 in wagers. The 75 free spins carry 50x wagering on their winnings. Max bet while wagering is €5 per round.
Spinstar.bet Bonuses
18+ Full Terms Apply. Play Responsibly.
374
Spinyoo Casino
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 bonus spins worth £10 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)+
The wagering on the 100% cash bonus at Spinyoo Casino 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 100 bonus spins carry 35x wagering on their winnings.
Spinyoo Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
375
Stelario Casino
Crypto Accepted
100% up to 300€ + 150 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 €300 on your deposit at Stelario Casino. You also get 150 free spins worth €15 in total, and winnings from the bonus are capped at €500. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit25€
Bonuses & Restrictions
Time limit10 days
Wagering45 x (D+B)+
The wagering on this offer is on the high side at 45x on your deposit plus bonus. A €100 deposit gives you a €100 bonus, and €100 + €100 = €200 x 45 = €9,000 in wagers. The 150 free spins carry 40x wagering on their winnings.
Stelario Casino Bonuses
18+ Full Terms Apply. Play Responsibly. New players only. Claim 10 free spins in the game Big Bass Bonanza (Pragmatic Play) from the customer service chat with the promo code MRGAMBLE after registering your player account.
376
Stone Vegas Casino
Launched 2025Crypto Accepted
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Stone Vegas Casino matches your deposit 100% up to €500 and gives you 200 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
Wagering35 x (D+B)+
Wagering on the matched bonus is 35x on your deposit plus bonus, which sits in the standard range. A €100 deposit gives you a €100 bonus, so €100 + €100 = €200 x 35x = €7,000 in wagers. You have 10 days to clear it. The 200 free spins carry 40x wagering on their winnings.
Stone Vegas Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
377
Thunderpick Casino
Exclusive BonusCrypto Accepted
100% up to 600€
Main details
Bonus type1st deposit bonus+
Thunderpick Casino matches your deposit 100% up to €600 on 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
Wagering30 x (D+B)+
Wagering is 30x 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 30 = €6,000 in total bets before you can withdraw bonus money.
Thunderpick Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
378
Tonybet
Crypto Accepted
100% up to 300€
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus, which gives you a 100% match up to €300 on your deposit at Tonybet. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Max bet5€
Time limit14 days
Wagering50 x B+
The wagering on the cash bonus is 50x on the bonus amount, which is on the high side. With a €100 deposit at 100%, you get a €100 bonus, and €100 x 50 = €5,000 in wagers.
Tonybet Bonuses
18+ Full Terms Apply. Play Responsibly.
379
Tooniebet Casino
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Tooniebet Casino matches your deposit 100% up to €500 and also gives you 200 free spins. Deposit at least €30 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit30€
Bonuses & Restrictions
Wagering30 x (D+B)+
Wagering is 30x 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 30x = €6,000 in wagers. The 200 free spins carry 30x wagering on their winnings.
Tooniebet Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
380
Vicibet Casino
Launched 2025
100% up to 1000€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Vicibet 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
Wagering50 x (D+B)+
Wagering on the cash bonus is 50x 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 50 = €10,000 in wagers. The 100 free spins carry 50x wagering on their winnings.
Vicibet Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
381
Viking Luck 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 at Viking Luck Casino. You also get 200 free spins. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit10€
Bonuses & Restrictions
Max bet5€
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 carry 40x wagering on their winnings.
Viking Luck Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
382
Wazamba
100% up to 500€ + 200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Wazamba, which gives you a 100% match up to €500 on your deposit. You also get 200 free spins. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Wagering35 x (D+B)+
The 35x wagering on this offer 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 0x wagering on their winnings.
Wazamba Bonuses
18+ Full Terms Apply. Play Responsibly.
383
Whamoo Casino
Crypto Accepted
100% up to 200€
Main details
Bonus type1st deposit bonus+
Whamoo Casino matches your deposit 100% up to €200 as a straight deposit bonus. Deposit at least €20 to claim it, and no bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit7 days
Wagering30 x (D+B)+
Wagering is 30x on your deposit plus bonus, which sits in the standard range. On a €100 deposit you get a €100 bonus, so €100 + €100 = €200 x 30 = €6,000 in wagers. You have 7 days to clear it.
Whamoo Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
384
Wild Tornado
Crypto Accepted
100% up to 1500€ + 100 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 €1,500 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, and winnings from the bonus are capped at €10,000.
Minimum deposit10€
Bonuses & Restrictions
Wagering40 x B+
The wagering on the cash bonus is above average at 40x and it applies to the bonus amount only. With a €100 deposit at 100%, a €100 bonus is added, and €100 x 40 = €4,000 in wagers. The 100 free spins carry 30x wagering on their winnings.
Wild Tornado Bonuses
18+ Full Terms Apply. Play Responsibly.
385
Winaday Casino
Crypto Accepted
100% up to 100€
Main details
Bonus type1st deposit bonus+
Deposit at least €25 to claim this deposit bonus at Winaday Casino, which gives you a 100% match up to €100 on your deposit. Use bonus code WELCOME1 when depositing.
Minimum deposit25€
Bonuses & Restrictions
Time limit90 days
Wagering25 x+
The 25x wagering on this welcome bonus is below average for this type of offer. With a €100 deposit you get a €100 bonus, and €100 x 25 = €2,500 in wagers.
Winaday Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
386
Winorama
100% up to 200€
Main details
Bonus type1st deposit bonus+
Deposit at least €10 to claim this deposit bonus at Winorama. You get a 100% match up to €200 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit10€
Bonuses & Restrictions
Wagering50 x B+
The wagering requirement is 50x on the bonus only, which is on the high side. With a €100 deposit at 100%, you get a €100 bonus, and €100 x 50 = €5,000 in wagers.
Winorama Bonuses
18+ Full Terms Apply. Play Responsibly.
387
Winspark Casino
100% up to 200€
Main details
Bonus type1st deposit bonus+
Deposit at least €10 to claim this deposit bonus at Winspark Casino. You get a 100% match up to €200 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit10€
Bonuses & Restrictions
Time limit7 days
Wagering50 x B+
The wagering requirement is 50x on the bonus, which is on the high side. With a €100 deposit at 100%, you get a €100 bonus, and €100 x 50 = €5,000 in wagers. The free spin winnings carry 0x wagering on their winnings.
Winspark Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
388
XLBet
100% up to 300€
Main details
Bonus type1st deposit bonus+
XLBet matches your deposit 100% up to €300 as a straight deposit bonus. Deposit at least €25 to claim it, and use bonus code XLBET when depositing.
Minimum deposit25€
Bonuses & Restrictions
Time limit7 days
Wagering40 x B+
XLBet gives you a 100% bonus, and 40x wagering applies to 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.
XLBet Bonuses
18+ Full Terms Apply. Play Responsibly.
389
Bethard
100% up to 100€ + 20 free spins
Main details
Bonus type1st deposit bonus+
Bethard matches your deposit 100% up to €100 and gives you 20 free spins worth €4 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 limit60 days
Wagering20 x (D+B)+
Wagering on the cash bonus is 20x on your deposit plus bonus, which is on the low side. With a €100 deposit you get a €100 bonus, so €100 + €100 = €200 x 20x = €4,000 in total wagers. The 20 free spins carry 10x wagering on their winnings.
Bethard Bonuses
18+ Full Terms Apply. Play Responsibly.
390
Highbet
100% up to 500€ + 50 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €10 to claim this deposit bonus from Highbet. You get a 100% match up to €500 on your deposit, plus 50 free spins worth €5 in total. No bonus code is needed, the bonus activates on your qualifying deposit, and this bonus is for Canadian players only.
Minimum deposit10€
Bonuses & Restrictions
Time limit21 days
Wagering35 x B+
The wagering is in the standard range at 35x and applies to the bonus amount only. If you deposit €100, the 100% match gives you a €100 bonus, and €100 x 35 = €3,500 in wagers. The 50 free spins carry 35x wagering on their winnings.
Highbet Bonuses
18+ Full Terms Apply. Play Responsibly.
391
Lotto Agent Casino
Crypto Accepted
100% up to 300€ + 70 free spins
Main details
Bonus type1st deposit bonus+
Lotto Agent Casino matches your deposit 100% up to €300 and gives you 70 free spins worth €7 in total. Deposit at least €10 to claim it, then use bonus code MRGAMBLE when depositing.
Minimum deposit10€
Bonuses & Restrictions
Time limit5 days
Wagering40 x (D+B)+
Wagering on the cash bonus is 40x on your deposit plus bonus, which is on the high side. A €100 deposit gives you a €100 bonus, so €100 + €100 = €200 x 40 = €8,000 in wagers. The 70 free spins carry 35x wagering on their winnings.
Lotto Agent Casino Bonuses
18+ Full Terms Apply. Play Responsibly.

Sources

Malta Gambling Authority