Casinos with 100% Bonus
Double your deposit with 100% bonuses and more
Updated October 2026 · 10 casinos selected · Our method
The 100% bonus is the most common welcome offer: the casino matches your first deposit with the same amount in bonus money. Deposit €100 and you play with €200. Simple on paper, yet two "100% up to €500" bonuses can be worth very different amounts.
What matters is the total amount you must wager to turn the bonus into withdrawable cash. That is how this selection is ranked: for each casino we show how much you need to bet after a €100 deposit.
The best 100% bonuses right now
First-deposit offers between 100% and 149%, ranked from the lowest to the highest wagering for a €100 deposit.
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1st deposit : 100% up to €1,000
- For a €100 deposit
- €100 bonus
- Wagering to clear
- €2,000
- Wager
- x20
- Min. deposit
- €20
1st deposit : 100% up to €500 + 250 FS
- For a €100 deposit
- €100 bonus
- Wagering to clear
- €3,000
- Wager
- x30
- Min. deposit
- €20
1st deposit : 100% up to €555 + 100 FS
- For a €100 deposit
- €100 bonus
- Wagering to clear
- €3,500
- Wager
- x35
- Min. deposit
- €10
1st deposit : 100% up to €500 + 1 Bonus Crab + 200 FS
- For a €100 deposit
- €100 bonus
- Wagering to clear
- €3,500
- Wager
- x35
- Min. deposit
- €20
1st deposit : 100% up to €500 + 1 Bonus Crab + 200 FS
- For a €100 deposit
- €100 bonus
- Wagering to clear
- €3,500
- Wager
- x35
- Min. deposit
- €20
1st deposit : 125% up to €1,000 + 50 FS
- For a €100 deposit
- €125 bonus
- Wagering to clear
- €3,750
- Wager
- x30
- Min. deposit
- €10
1st deposit : 100% up to €500
- For a €100 deposit
- €100 bonus
- Wagering to clear
- €4,000
- Wager
- x40
- Min. deposit
- €20
1st deposit : 100% up to €500 + 100 FS
- For a €100 deposit
- €100 bonus
- Wagering to clear
- €4,000
- Wager
- x40
- Min. deposit
- €20
1st deposit : 100% up to €500 + 150 Free Spins
- For a €100 deposit
- €100 bonus
- Wagering to clear
- €4,000
- Wager
- x40
- Min. deposit
- €20
1st deposit : 100% + 100 FS
- For a €100 deposit
- €100 bonus
- Wagering to clear
- €4,000
- Wager
- x40
- Min. deposit
- €20
What a 100% bonus is really worth
With a €100 deposit, every casino here gives you about €100 in bonus money. The difference is the wagering. At GreatSlots you need to wager €2,000 in total; at HolyLuck, €4,000. That is that many more spins, and that many more chances to lose the bonus before you clear it.
| Deposit | 100% bonus | Wagering (x20) | Wagering (x30) | Wagering (x40) |
|---|---|---|---|---|
| €50 | €50 | €1,000 | €1,500 | €2,000 |
| €100 | €100 | €2,000 | €3,000 | €4,000 |
| €200 | €200 | €4,000 | €6,000 | €8,000 |
Wagering applied to the bonus only. If it applies to deposit + bonus, the amounts double.
To estimate what you will keep on average, factor in the game’s return to player (RTP): on a 96% slot, every €1,000 wagered costs €40 on average. Our bonus calculator does the maths for you, and our RTP guide explains how it works.
100% bonus or multi-deposit package?
Many casinos advertise a "400% package" that is really a series of 100% bonuses over four deposits. Cosmobet, for example, matches each of your first four deposits up to €500 with 250 free spins each time. The headline percentage is the total, not what you get on one deposit.
If you only plan one deposit, compare the first-deposit bonus alone, as in this selection. If you will play regularly, a spread-out package can be better value: see our 200% bonus and 300%+ bonus selections.
Terms to read before you activate the bonus
- Wagering: how many times you must bet the bonus (or deposit + bonus). Below x30 is a good offer; above x40 it becomes hard to clear.
- Maximum bet: often €3 to €5 per spin while the bonus is active. Going over even once can void the bonus and winnings.
- Game contribution: slots usually count 100%, table games and live casino often 10% or nothing.
- Time limit: 7 to 30 days to meet the wagering. After that, the bonus and its winnings expire.
- Excluded games: some high-RTP or jackpot slots do not count towards wagering.
How to claim a 100% bonus
- 1Pick a casino from the selection and open an account with your real details (they will be checked at your first withdrawal).
- 2Upload your ID and proof of address straight away to avoid waiting when you withdraw.
- 3Make your first deposit above the stated minimum (often €10 or €20), ticking the bonus box or entering the code if there is one.
- 4Play slots that count 100%, staying under the maximum bet, until the wagering is complete.
- 5Request your withdrawal: anything above the bonus is yours.
Frequently asked questions
What is a 100% bonus?
A bonus that doubles your deposit: for a €100 deposit the casino adds €100 in bonus money, up to a cap (for example €500). The bonus must be wagered a set number of times before you can withdraw it.
Which 100% bonus is the best?
The one that needs the least wagering to clear. In our selection that is GreatSlots, with x20 wagering on a bonus of up to €1,000.
Can I withdraw the bonus straight away?
No. The bonus becomes withdrawable only once the wagering is met. At some casinos your deposit is also locked while the bonus is active: check the terms.
Do I need a promo code?
Rarely. Most casinos apply the bonus when you tick a box at deposit. When a code is needed, it is listed in our review of that casino.