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 28

Alina Anisimova, Isobel Coughlan

Updated:25.6.2026

622
Rizk
100% up to 100€ + 50 free spins
Main details
Bonus type1st deposit bonus+
Rizk matches your deposit 100% up to €100 and adds 50 free spins on top. 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 B+
Wagering 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 50 free spins carry 0x wagering on their winnings.
Rizk Bonuses
18+ Full Terms Apply. Play Responsibly.

623
Platin Casino
100% up to 500€
Main details
Bonus type1st deposit bonus+
Platin Casino 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
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. A €100 deposit gives you a €100 bonus, so you wager €100 + €100 = €200 x 40 = €8,000 in total bets. You have 14 days to clear it.
Platin Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
624
Sky City Casino
100% up to 200€
Main details
Bonus type1st deposit bonus+
Sky City Casino matches your deposit 100% up to €200. Deposit at least €10 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit10€
Bonuses & Restrictions
Time limit30 days
Wagering35 x D+
Wagering is 35x on your deposit only, which sits in the standard range. With a €100 deposit you wager your €100 deposit 35 times: €100 x 35 = €3,500 in wagers. You have 30 days to clear it.
Sky City Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
625
Slotbox
100% up to 100€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Slotbox matches your deposit 100% up to €100 and gives you 100 free spins worth €10 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 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. You have 7 days to clear it. The 100 free spins carry 35x wagering on their winnings.
Slotbox Bonuses
18+ Full Terms Apply. Play Responsibly.
626
ROX Casino
100% up to RUB 30000 + 500 free spins
Main details
Bonus type1st deposit bonus+
ROX Casino matches your deposit 100% up to 30,000 RUB and gives you 500 free spins worth 50 RUB in total. Deposit at least 300 RUB to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum depositRUB 300
Bonuses & Restrictions
Max betRUB 500
Time limit3 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 500 free spins carry 30x wagering on their winnings, and max bet while wagering is ₽500 per round. You have 3 days to clear it.
ROX Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
627
SlottoJAM Casino
100% up to 200€
Main details
Bonus type1st deposit bonus+
SlottoJAM Casino matches your deposit 100% up to €200 when you claim this 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
Wagering25 x (D+B)+
SlottoJAM Casino sets wagering at 25x on your deposit plus bonus, which is below average. If you deposit €100, you get a €100 bonus, so €100 + €100 = €200 x 25 = €5,000 in wagers. You have 30 days to clear it.
SlottoJAM Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
628
Spinnalot
100% up to 200€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Spinnalot matches your deposit 100% up to €200 and gives you 100 free spins worth €10 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 limit7 days
Wagering25 x (D+B)+
Wagering is 25x on the combined deposit plus bonus, which is below average. With a €100 deposit you get a €100 bonus, so you wager (€100 + €100) x 25 = €5,000 in total bets. The 100 free spins carry 45x wagering on their winnings.
Spinnalot Bonuses
18+ Full Terms Apply. Play Responsibly.
629
Wild Fortune Casino
100% up to 2000€
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Wild Fortune Casino. You get a 100% match up to €2,000 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit7 days
Wagering45 x B+
The 45x wagering on the bonus is on the high side. With a €100 deposit and a 100% match, you get a €100 bonus, and €100 x 45 = €4,500 in wagers.
Wild Fortune Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
630
Brazino777 Casino
100% up to 50€
Main details
Bonus type1st deposit bonus+
Brazino777 Casino matches your deposit 100% up to €50 on this deposit bonus. Deposit at least €5 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit5€
Bonuses & Restrictions
Time limit30 days
Wagering50 x B+
Wagering on the cash bonus is 50x the bonus amount, which is on the high side. With a €100 deposit you get a €50 bonus, and €50 x 50 = €2,500 in wagers. You have 30 days to clear it.
Brazino777 Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
631
Novibet
Exclusive Bonus
100% up to 50€ + 30 free spins
Main details
Bonus type1st deposit bonus+
Novibet matches your deposit 100% up to £50 and gives you 30 free spins worth £3 in total. Deposit at least £10 to claim it and use bonus code MARCHMADNESS2024 when depositing. This bonus is for UK players only.
Minimum deposit10€
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 you get a £50 bonus, so you wager £100 + £50 = £150 x 35 = £5,250 in total. You have 30 days to clear it, and the 30 free spins carry 35x wagering on their winnings.
Novibet Bonuses
18+ Full Terms Apply. Play Responsibly.
632
Flaksi Kasino
100% up to 600€ + 50 free spins
Main details
Bonus type1st deposit bonus+
Flaksi Kasino matches your deposit 100% up to €600 and adds 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
Time limit30 days
Wagering40 x (D+B)+
Wagering 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 50 free spins carry 0x wagering on their winnings.
Flaksi Kasino Bonuses
18+ Full Terms Apply. Play Responsibly.
633
Igni Casino
100% up to 500€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Igni Casino matches your deposit 100% up to €500 and gives you 100 free spins worth €10 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
Wagering40 x (D+B)+
Wagering on the cash bonus at Igni Casino is 40x on your deposit plus bonus, which is above average. With a €100 deposit you get a €100 bonus, so you wager (€100 + €100) x 40x = €8,000 in total bets. The 100 free spins carry 40x wagering on their winnings.
Igni Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
634
The Online Casino
100% up to 100€ + 20 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least £20 to claim this deposit bonus at The Online Casino, which gives you a 100% match up to £100 on your deposit. You also get 20 bonus spins. No bonus code is needed, the bonus activates on your qualifying deposit, and winnings from the bonus are capped at £300.
Minimum deposit20€
Bonuses & Restrictions
Wagering50 x B+
The wagering on this offer is on the high side: you must wager the bonus amount 50x before you can withdraw. With a £100 deposit, you get a £100 bonus, and £100 x 50 = £5,000 in wagers. The 20 bonus spins carry 50x wagering on their winnings.
The Online Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
635
Kunkku Kasino
100% up to 500€ + 50 free spins
Main details
Bonus type1st deposit bonus+
Kunkku Kasino matches your deposit 100% up to €500 and gives you 50 free spins worth €5.00 in total (€0.10 per spin). 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 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. The 50 free spins carry 40x wagering on their winnings, and max bet while wagering is €5 per round. You have 30 days to clear it.
Kunkku Kasino Bonuses
18+ Full Terms Apply. Play Responsibly.
636
Tuuri Casino
Launched 2025
100% up to 300€ + 40 free spins
Main details
Bonus type1st deposit bonus+
Tuuri Casino matches your deposit 100% up to €300 and gives you 40 free spins worth €4 in total 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
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 €100 + €100 = €200 x 40 = €8,000 in wagers. The 40 free spins carry 40x wagering on their winnings.
Tuuri Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
637
Valttikasino
Launched 2025
100% up to 500€ + 30 free spins
Main details
Bonus type1st deposit bonus+
Valttikasino matches your deposit 100% up to €500 and gives you 30 free spins on Bigger Bass Splash, worth €3. 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 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 30 free spins carry 40x wagering on their winnings. Max bet while wagering is €5 per round. You have 30 days to clear it.
Valttikasino Bonuses
18+ Full Terms Apply. Play Responsibly.
638
Rizz Casino
100% up to 500€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Rizz Casino matches your deposit 100% up to €500 and gives you 100 free spins on Feel The Beat, worth €10 in total at €0.10 per spin. 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
Wagering20 x (D+B)+
Wagering is 20x on your deposit plus bonus, which is on the low side. With a €100 deposit at Rizz Casino you get a €100 bonus, so €100 + €100 = €200 x 20x = €4,000 in wagers. You have 7 days to clear it, and the 100 free spins carry 0x wagering on their winnings.
Rizz Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
639
Big Lucky Casino
Launched 2025
100% up to 1000€
Main details
Bonus type1st deposit bonus+
Big Lucky Casino matches your deposit 100% up to €1,000. 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
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 35x = €7,000 in wagers. Max bet while wagering is €5 per round, and you have 7 days to clear it.
Big Lucky Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
640
National Casino
100% up to 100€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €10 to claim this deposit bonus at National Casino, which gives you a 100% match up to €100 on your deposit. You also get 100 free spins with this offer. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit10€
Bonuses & Restrictions
Wagering40 x B+
The wagering requirement is 40x on the bonus only, 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.
National Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
641
King Billy Casino
100% up to 500€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least C$10 to claim this deposit bonus at King Billy Casino. You get a 100% match up to C$500 plus 100 free spins on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit10€
Bonuses & Restrictions
Wagering30 x B+
Wagering is 30x on the bonus amount, which sits in the standard range. With a C$100 deposit at 100%, you get a C$100 bonus, and C$100 x 30 = C$3,000 in wagers. The 100 free spins carry 30x wagering on their winnings.
King Billy Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
642
Elite Spin Casino
New 2026
100% up to 1000€ + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Elite Spin Casino. You get a 100% match up to €1,000 on your deposit, plus 100 free spins on Bonanza Trillion worth a total of €10. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Max bet5€
Time limit7 days
Wagering35 x B+
The wagering on the cash bonus is 35x in the standard range and applies to the bonus amount only. With a €100 deposit at 100%, you get a €100 bonus, and €100 x 35 = €3,500 in wagers. The 100 free spins carry 35x wagering on their winnings.
Elite Spin Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
643
Bitstarz Casino
100% up to 100€ + 180 free spins
Main details
Bonus type1st deposit bonus
Bonus value100%
Maximum bonus100€
Freespins180
Bonuses & Restrictions
Minimum deposit20€
Wagering requirement40 x B
Available for withdrawalYes
Bitstarz Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
644
Kingswin Casino
100% up to 100€ + 55 free spins
Main details
Bonus type1st deposit bonus
Bonus value100%
Maximum bonus100€
Freespins55
Bonuses & Restrictions
Minimum deposit20€
Wagering requirement45 x B
Available for withdrawalYes
Kingswin Casino Bonuses
18+ Full Terms Apply. Play Responsibly.

Sources

Malta Gambling Authority