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 3

Alina Anisimova, Isobel Coughlan

Updated:25.6.2026

74
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 deposit$20
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.
Not Available
FatPirate Casino Bonuses
18+ Full Terms Apply. Play Responsibly.

75
Katsubet
Crypto Accepted
100% up to $400 + 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 €400 on your deposit. You also get 100 free spins, and no bonus code is needed, the bonus activates on your qualifying deposit. This bonus is for Canadian players only.
Minimum deposit$20
Bonuses & Restrictions
Max bet$1
Time limit14 days
Wagering45 x (D+B)+
The wagering is 45x on the high side and it applies to both your deposit and your bonus. With a €100 deposit you get a €100 bonus, so €100 + €100 = €200 x 45 = €9,000 in wagers. The 100 free spins carry 50x wagering on their winnings.
Not Available
Katsubet Bonuses
18+ Full Terms Apply. Play Responsibly.
76
GalacticWins Casino
100% up to $500 + 50 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at GalacticWins Casino, which gives you a 100% match up to €500 on your deposit. You also get 50 free spins, and no bonus code is needed, the bonus activates on your qualifying deposit. Winnings from the bonus are capped at €1,000.
Minimum deposit$20
Bonuses & Restrictions
Time limit7 days
Wagering40 x (D+B)+
The wagering on the cash bonus is 40x 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 50 free spins carry 0x wagering on their winnings.
Not Available
GalacticWins Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
77
JeetCity 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 from JeetCity Casino, which gives you a 100% match up to €250 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 deposit$20
Bonuses & Restrictions
Max bet$1
Time limit5 days
Wagering40 x (D+B)+
The wagering on this bonus is 40x on your deposit plus bonus, which is above average. With a €100 deposit 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.
Not Available
JeetCity Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
78
Felix Spin Casino
Crypto Accepted
100% up to $250 + 150 free spins
Main details
Bonus type1st deposit bonus+
Felix Spin Casino matches your deposit 100% up to €250 and gives you 150 free spins worth €15 in total. Deposit at least €20 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$20
Bonuses & Restrictions
Time limit7 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, so €100 + €100 = €200 x 35 = €7,000 in wagers. You have 7 days to clear it. The 150 free spins carry 35x wagering on their winnings.
Not Available
Felix Spin Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
79
Casinomax
100% up to $3250
Main details
Bonus type1st deposit bonus+
Deposit at least €35 to claim this deposit bonus at Casinomax. You get a 100% match up to €3,250 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$35
Bonuses & Restrictions
Max bet$10
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.
Not Available
Casinomax Bonuses
18+ Full Terms Apply. Play Responsibly.
80
Bankonbet 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 Bankonbet Casino, which gives you a 100% match up to €500 on your deposit. You also get 200 bonus spins worth €20 in total, and no bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$20
Bonuses & Restrictions
Max bet$5
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, so €100 + €100 = €200 x 35 = €7,000 in wagers. The 200 free spins carry 40x wagering on their winnings.
Not Available
Bankonbet Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
81
Slot Lion Casino
New 2026
100% up to $400
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Slot Lion Casino. You get a 100% match up to €400 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$20
Bonuses & Restrictions
Max bet$5
Time limit48 hours
Wagering25 x (D+B)+
The wagering is 25x on your deposit plus bonus, which is below average. A €100 deposit gives you a €100 bonus, so €100 + €100 = €200 x 25 = €5,000 in wagers.
Not Available
Slot Lion Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
82
CrazyTower Casino
New 2026Crypto Accepted
100% up to $3000 + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at CrazyTower Casino. You get a 100% match up to €3,000 on your deposit, plus 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 €30,000.
Minimum deposit20€
Bonuses & Restrictions
Max bet$100
Time limit10 days
Wagering35 x (D+B)+
The 100% bonus at CrazyTower Casino comes with 35x wagering 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 free spins carry 40x wagering on their winnings.
Not Available
CrazyTower Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
83
Immerion Casino
Crypto Accepted
100% up to $1000 + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €15 to claim this deposit bonus, which gives you a 100% match up to €1,000 on your deposit. You also get 100 free spins on Sweet Bonanza 1000, worth €10 in total. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$15
Bonuses & Restrictions
Time limit30 days
Wagering40 x (D+B)+
The 40x wagering on this bonus is above average and applies to both your deposit and your bonus. With a €100 deposit on a 100% match, 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.
Not Available
Immerion Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
84
21luckybet
100% up to $200 + 20 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least £10 to claim this deposit bonus at 21luckybet. You get a 25% match up to £50 on your deposit, plus 20 free spins worth a total of £2. No bonus code is needed, the bonus activates on your qualifying deposit, and this bonus is for UK players only.
Minimum deposit$10
Bonuses & Restrictions
Time limit30 days
Wagering50 x B+
The 10x wagering on this 25% bonus is on the low side. With a £100 deposit you get a £25 bonus, and £25 x 10 = £250 in wagers. The 20 free spins carry 10x wagering on their winnings.
Not Available
21luckybet Bonuses
18+ Full Terms Apply. Play Responsibly.
85
bCasino
Exclusive Bonus
100% up to $25
Main details
Bonus type1st deposit bonus+
bCasino matches your deposit 100% up to €25 as a straightforward deposit bonus. Deposit at least €5 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$5
Bonuses & Restrictions
Wagering50 x B+
Wagering on the cash bonus is 50x the bonus amount, which is on the high side. With a €100 deposit at 100%, the bonus you work with in the example is capped at €25, so you need to wager €25 x 50 = €1,250.
Not Available
bCasino Bonuses
18+ Full Terms Apply. Play Responsibly.
86
Moana Casino
Launched 2025Crypto Accepted
100% up to $2000
Main details
Bonus type1st deposit bonus+
Deposit at least €25 to claim this deposit bonus, which gives you a 100% match up to €2,000 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$25
Bonuses & Restrictions
Time limit30 days
Wagering30 x (D+B)+
Wagering is 30x on your deposit plus bonus, which sits in the standard range. With a €100 deposit and a 100% match you get a €100 bonus, so €100 + €100 = €200 x 30 = €6,000 in wagers.
Not Available
Moana Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
87
SlotOwl Casino
New 2026
100% up to $500
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at SlotOwl Casino. You get a 100% match up to €500 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit, and winnings from the bonus are capped at €2,500.
Minimum deposit$20
Bonuses & Restrictions
Max bet$5
Time limit48 hours
Wagering25 x (D+B)+
The 25x wagering on this 100% match is below average and applies to both your deposit and bonus. A €100 deposit gives you a €100 bonus, so €100 + €100 = €200 x 25 = €5,000 in wagers.
Not Available
SlotOwl Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
88
Shinywilds Casino
Launched 2025Crypto Accepted
100% up to $500 + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Shinywilds Casino: you get a 100% match up to €500 on your deposit. You also get 100 free spins on Wild Walker, worth €10 in total. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit20€
Bonuses & Restrictions
Time limit7 days
Wagering30 x B+
The 100% bonus at Shinywilds Casino has 30x wagering on the bonus amount, which sits in the standard range. With a €100 deposit you get a €100 bonus, and €100 x 30 = €3,000 in wagers. The 100 free spins carry 30x wagering on their winnings.
Not Available
Shinywilds Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
89
Mama.bet
New 2026Crypto Accepted
100% up to $500
Main details
Bonus type1st deposit bonus+
Deposit at least €30 to claim this deposit bonus at Mama.bet, which gives you a 100% match up to €500 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit. Winnings from the bonus are capped at €2,500.
Minimum deposit$30
Bonuses & Restrictions
Max bet$5
Time limit10 days
Wagering40 x B+
The 40x wagering on this 100% match applies to the bonus amount only, which is above average. With a €100 deposit you get a €100 bonus, and €100 x 40x = €4,000 in wagers.
Not Available
Mama.bet Bonuses
18+ Full Terms Apply. Play Responsibly.
90
Play Kasino
New 2026
100% up to $100 + 50 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Play Kasino: you get a 100% match up to €100 on your deposit. You also get 50 free spins on Book of Dead, worth €5 in total at €0.10 per spin. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$20
Bonuses & Restrictions
Max bet$5
Time limit30 days
Wagering30 x (D+B)+
Wagering is 30x on your deposit plus bonus, which is in the standard range. With a €100 deposit on a 100% bonus you get a €100 bonus, and €100 + €100 = €200 x 30 = €6,000 in wagers. The 50 free spins carry 30x wagering on their winnings.
Not Available
Play Kasino Bonuses
18+ Full Terms Apply. Play Responsibly.
91
Casino Crypto
New 2026Crypto Accepted
200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €30 to claim this deposit bonus at Casino Crypto. You get 200 free spins worth €40 in total with your deposit. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$30
Bonuses & Restrictions
Time limit7 days
Wagering40 x B+
The free spin winnings carry 40x wagering before you can withdraw.
Not Available
Casino Crypto Bonuses
18+ Full Terms Apply. Play Responsibly.

Sources

Malta Gambling Authority