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 2

Alina Anisimova, Isobel Coughlan

Updated:25.6.2026

47
Casino Estrella
100% up to $50 + 100 free spins
Main details
Bonus type1st deposit bonus+
Casino Estrella matches your deposit 100% up to €50 and also gives you 100 free spins. Winnings are capped at €200. Deposit at least €10 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$10
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 €50 bonus due to the €50 cap, so €100 + €50 = €150 x 30 = €4,500 in wagers. The 100 free spins carry 35x wagering on their winnings.
Not Available
Casino Estrella Bonuses
18+ Full Terms Apply. Play Responsibly.

48
DolfWin Casino
100% up to $500 + 200 free spins
Main details
Bonus type1st deposit bonus+
DolfWin Casino matches your deposit 100% up to €500 and adds 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 limit21 days
Wagering40 x (D+B)+
Wagering on this bonus is 40x on your deposit plus bonus, which is above average. A €100 deposit gives you a €100 bonus, so you wager €100 + €100 = €200 x 40 = €8,000 in total bets. The 200 free spins carry 40x wagering on their winnings.
Not Available
DolfWin Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
49
Fatboss
100% up to $50 + 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 €50 on your deposit. You also get 100 free spins, and no bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$10
Bonuses & Restrictions
Wagering30 x (D+B)+
The wagering on the cash bonus sits in the standard range at 30x on your deposit plus bonus. With a €100 deposit you get a €50 bonus (the maximum), and €100 + €50 = €150 x 30 = €4,500 in wagers. The 100 free spins carry 30x wagering on their winnings.
Not Available
Fatboss Bonuses
18+ Full Terms Apply. Play Responsibly.
50
FruitKings 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. You also get 100 bonus spins. No bonus code is needed, the bonus activates on your qualifying deposit, and winnings from the bonus are capped at £1,000.
Minimum deposit$20
Bonuses & Restrictions
Time limit30 days
Wagering40 x B+
The wagering on the cash 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 bonus spins carry 0x wagering on their winnings.
Not Available
FruitKings Casino Bonuses
18+ Full Terms Apply. Play Responsibly. 18+. New players only. 100% First deposit bonus up to £50: Min deposit £10. Wagering including from balance funds: 35x deposit amount to unlock bonus as cash. 20 Free Spins on Big Bass Splash (no wagering). Free spin winnings credited to cash. Expiry: Bonus balance 90 days; Free Spins 2 days. Deposit Bonus forfeited upon withdrawal if wagering requirements not met. Deposit Bonus max cashout: £250. T&C’s apply. Gamble Responsibly. Gambleaware.org.
51
Hexabet Casino
100% up to $500 + 100 free spins
Main details
Bonus type1st deposit bonus+
Hexabet Casino matches your deposit 100% up to €500 and gives you 100 free spins worth €10.00 in total. Deposit at least €25 to claim it, no bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$25
Bonuses & Restrictions
Max bet$5
Time limit10 days
Wagering40 x B+
Wagering 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. Max bet while wagering is €5 per round. You have 10 days to clear it.
Not Available
Hexabet Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
52
Hiperwin Casino
100% up to $200
Main details
Bonus type1st deposit bonus+
Hiperwin Casino matches your deposit 100% up to €200 as a regular deposit bonus. Deposit at least €10 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$10
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 at 100%, you get a €100 bonus, and €100 x 35 = €3,500 in wagers. You have 30 days to clear it.
Not Available
Hiperwin Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
53
Lucky Twice Casino
100% up to $1000 + 100 free spins
Main details
Bonus type1st deposit bonus+
Lucky Twice Casino matches your deposit 100% up to €1,000 and gives you 100 free spins with your bonus. 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
Wagering40 x B+
Wagering is 40x on 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. You have 7 days to clear it. The 100 free spins carry 40x wagering on their winnings.
Not Available
Lucky Twice Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
54
Pokobet
Launched 2025
100% up to $500 + 50 free spins
Main details
Bonus type1st deposit bonus+
Pokobet matches your deposit 100% up to €500 and adds 50 free spins. Deposit at least €20 to claim it. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$20
Bonuses & Restrictions
Max bet$5
Time limit7 days
Wagering35 x (D+B)+
Wagering on the cash bonus at Pokobet 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 the bonus is sticky, you play with it but only withdraw the winnings. The 50 free spins carry 40x wagering on their winnings, and max bet while wagering is €5 per round.
Not Available
Pokobet Bonuses
18+ Full Terms Apply. Play Responsibly.
55
Richard Casino
100% up to $1000 + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Richard Casino, 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 deposit$20
Bonuses & Restrictions
Time limit7 days
Wagering40 x (D+B)+
The wagering is 40x on 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 100 free spins carry 40x wagering on their winnings.
Not Available
Richard Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
56
Ritzo Casino
100% up to $250
Main details
Bonus type1st deposit bonus+
Ritzo Casino matches your deposit 100% up to €250 on this deposit bonus. 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
Wagering45 x B+
Ritzo Casino sets wagering at 45x on the bonus amount, which is on the high side. With a €100 deposit you get a €100 bonus, and €100 x 45 = €4,500 in wagers. You have 7 days to clear it.
Not Available
Ritzo Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
57
Slotland Casino
Exclusive Bonus
100% up to $1000
Main details
Bonus type1st deposit bonus+
Deposit at least €25 to claim this deposit bonus at Slotland Casino. You get a 100% match up to €33 on your deposit, and winnings from the bonus are capped at €100. Use bonus code FREE33MRGM when depositing, and this bonus is for Canadian players only.
Minimum deposit$25
Bonuses & Restrictions
Time limit90 days
Wagering25 x B+
The wagering requirement is 25x on the bonus only, which is below average. With a €100 deposit at 100% you would get a €33 bonus (the maximum), and €33 x 25 = €825 in wagers.
Not Available
Slotland Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
58
Winaday Casino
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 deposit$25
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.
Not Available
Winaday Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
59
Moonwin Casino
100% up to $5000 + 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 €5,000 on your deposit. You also get 100 free spins on Wild Cash at €0.10 per spin, worth a total of €10. No bonus code is needed, the bonus activates on your qualifying deposit at Moonwin Casino.
Minimum deposit$20
Bonuses & Restrictions
Max bet$5
Time limit5 days
Wagering40 x B+
The wagering requirement is 40x on the bonus, 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.
Not Available
Moonwin Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
60
Mirax Casino
100% up to $400 + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Mirax Casino, which gives you a 100% match up to €400 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 deposit$20
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 at 100%, you get a €100 bonus, so 100 + 100 = €200 x 35 = €7,000 in wagers. The 100 free spins carry 45x wagering on their winnings.
Not Available
Mirax Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
61
Jackpotter Casino
Launched 2025
100% up to $1000
Main details
Bonus type1st deposit bonus+
Deposit at least €10 to claim this deposit bonus at Jackpotter Casino. You get a 100% match up to €1,000 on your deposit. No bonus code is needed, the bonus activates on your qualifying deposit. Winnings from the bonus are capped at €1,000.
Minimum deposit$10
Bonuses & Restrictions
Time limit1 day
Wagering35 x B+
The wagering requirement is 35x on the bonus amount, which sits in the standard range. With a €100 deposit at 100%, you get a €100 bonus, and €100 x 35 = €3,500 in wagers.
Not Available
Jackpotter Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
62
7Bit Casino
100% up to $800 + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €40 to claim this deposit bonus at 7Bit Casino. You get a 100% match up to €800 on your deposit plus 100 free spins. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$40
Bonuses & Restrictions
Max bet$2
Time limit14 days
Wagering35 x B+
The wagering requirement is 35x on the bonus, which sits in the standard range. With a €100 deposit you get a €100 bonus, and €100 x 35 = €3,500 in wagers. The 100 free spins carry 35x wagering on their winnings.
Not Available
7Bit Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
63
Mama.bet
New 2026
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.
64
Slot Spice Casino
New 2026
100% up to $400
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Slot Spice 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)+
Wagering is 25x on your deposit plus bonus, which is below average. With a 100% match, a €100 deposit gives you a €100 bonus, and €100 + €100 = €200 x 25 = €5,000 in wagers.
Not Available
Slot Spice Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
65
Shotz Casino
100% up to $500 + 200 free spins
Main details
Bonus type1st deposit bonus+
Shotz 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
Max bet$5
Wagering45 x (D+B)+
Wagering on the cash bonus is 45x 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 45 = €9,000 in wagers. The 200 free spins carry 30x wagering on their winnings, and max bet while wagering is €5 per round.
Not Available
Shotz Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
66
Olympusbet Casino
100% up to $500 + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Olympusbet Casino, which gives you a 100% match up to €500 on your deposit. You also get 100 free spins. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$20
Bonuses & Restrictions
Time limit21 days
Wagering40 x (D+B)+
The wagering is 40x on 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 100 free spins carry 40x wagering on their winnings.
Not Available
Olympusbet Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
67
Instaspin Casino
100% up to $100 + 100 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Instaspin Casino, which gives you a 100% match up to €100 on your deposit. You also get 100 free spins. No bonus code is needed, the bonus activates on your qualifying deposit.
Minimum deposit$20
Bonuses & Restrictions
Time limit30 days
Wagering30 x (D+B)+
The wagering requirement 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 100 free spins carry 30x wagering on their winnings.
Not Available
Instaspin Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
68
WinMega Casino
Launched 2025
100% up to $200 + 25 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at WinMega Casino, which gives you a 100% match up to €200 on your deposit. Use bonus code WELCOME200 when depositing and you get 25 free spins worth €2.50 in total.
Minimum deposit$20
Bonuses & Restrictions
Max bet$12
Time limit21 days
Wagering40 x (D+B)+
The wagering requirement 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 25 free spins carry 40x wagering on their winnings.
Not Available
WinMega Casino Bonuses
18+ Full Terms Apply. Play Responsibly.
69
Wildsino Casino
100% up to $500 + 200 free spins
Main details
Bonus type1st deposit bonus+
Deposit at least €20 to claim this deposit bonus at Wildsino Casino. You get a 100% match up to €500 plus 200 free spins worth €20 in total on your deposit.
Minimum deposit$20
Bonuses & Restrictions
Time limit10 days
Wagering40 x (D+B)+
The wagering requirement 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 200 free spins carry 35x wagering on their winnings.
Not Available
Wildsino Casino Bonuses
18+ Full Terms Apply. Play Responsibly.

Sources

Malta Gambling Authority