Every bonus at 21 Casino comes with a wagering requirement attached, and that condition decides what the offer is actually worth to you. A 50% reload bonus sounds generous until the terms ask you to play through the bonus ten times before any of it becomes withdrawable cash. The promotions for regular players are built around that number, so the size of the percentage matters less than the playthrough attached to it.
The ongoing offers at 21 Casino are a weekly cashback, reload bonuses on deposits and free spins tied to specific slots. Cashback carries a wagering requirement of 5x, the lowest of the three, which makes it the easiest to clear. Reload bonuses need 10x the bonus amount in play, and free spins winnings come with a 30x requirement on the winnings only.
Bonus terms, wagering and licence details
- Weekly cashback: 5x wagering on the cashback amount.
- Reload bonus: 50% up to €100, with 10x wagering on the bonus.
- Free spins: 30x wagering on winnings from the spins.
- Licence and operator: Curaçao licence, operated by Green Feather Online B.V.
- Minimum deposit for the reload bonus: €20.
Where the regular-player offers hold up
The weekly cashback is the part of the programme that deserves attention. A 5x playthrough on cashback money is a low bar compared with the 10x on reload bonuses and the 30x on free spins winnings, and it applies to money you get back from play rather than to a fresh deposit. If you play slots regularly, the cashback is the offer that asks the least of you after it lands in your balance.
The reload bonus percentage is fixed at 50% up to €100, so the ceiling arrives at a €200 deposit. Below that, the bonus scales with what you put in. The 10x requirement is stated on the bonus amount, which keeps the playthrough tied to the reward rather than to your deposit plus the reward. That is the structure most players will find easier to plan around, because the target figure is smaller.
Free spins come attached to named slots rather than to the whole lobby, and the 30x requirement applies to what the spins win, not to the spins themselves. A run of dead spins costs you nothing beyond the deposit that triggered them; a good run leaves a balance that needs thirty times its value in play before withdrawal. The gap between the three requirements is wide, and it shapes which offer suits which player.
Our preference here is the cashback, for the plain reason that 5x is a fifth of what the free spins demand. A player who deposits for the reload bonus and clears it still faces a longer path to cash than one who simply plays and collects cashback on the week’s activity.
Conditions to watch before you claim
- The reload bonus caps at €100, so a deposit above €200 earns nothing extra on the bonus side.
- Free spins winnings at 30x take far longer to clear than either cashback or reload money.
- Wagering applies to the bonus or to the winnings, depending on the offer, and the bonus terms spell out which base each promotion uses.
- 21 Casino asks for verification documents case by case, so a withdrawal can pause while those are reviewed.
- Public reviews and player reports describe mixed experiences with payouts, which is worth knowing before you commit a large balance.
The practical conclusion: if you want the least friction between a promotion and a withdrawal, take the cashback and treat the reload and free spins as extras you claim only when you have time to play through them. Claiming all three at once stacks requirements that each need separate play, and the clock on bonus funds rarely favours that.
Gambling is for adults only (18+). If gambling is causing you problems, free and confidential support services in your country can help. Play only with money you can afford to lose, and never deposit more than you planned just because a bonus is on offer.
A €100 reload bonus worked through
Say you deposit €200 to trigger the full 50% reload bonus, which gives you €100 in bonus funds. The 10x requirement applies to that €100, so you need €1,000 in qualifying play before the bonus turns into withdrawable money. That figure is ten times the reward, not ten times your deposit, and it is the number to keep in mind when you decide how much to put in.
Compare the cashback on the same week. If you receive €10 back and the 5x requirement applies, you need €50 in play to clear it. The cashback asks for a fraction of the effort the reload bonus does, even though the amount is smaller. Neither figure promises a profit; both describe how much play the terms require before the money is yours to withdraw.
Who the ongoing promotions suit
These offers fit certain habits better than others.
- Suits players who play slots most weeks and want a low playthrough on what comes back.
- Suits players who deposit around €200 and want the full reload bonus rather than a partial one.
- Suits players patient enough to clear a 30x requirement on free spins winnings.
They fit less well for others.
- Does not suit players who deposit large sums expecting a bigger bonus, since the reload caps at €100.
- Does not suit players who want instant withdrawals, given the verification step and the mixed payout reports.
- Does not suit anyone chasing losses, because a bonus adds a requirement rather than a route back.
Check the licence and terms before your first deposit
21 Casino holds a Curaçao licence and is operated by Green Feather Online B.V. That licence was not issued in your country. Before depositing, read the bonus terms for each promotion and confirm which base the wagering uses: the bonus alone, or deposit plus bonus. Check the minimum deposit and the maximum bonus on the reload offer, and look at the cashback terms for how the weekly amount is calculated. The cashier and customer support can answer questions about verification, and the T&Cs set out the rules that apply if a dispute arises.
For this angle, the verdict is straightforward. The weekly cashback at 5x is the strongest ongoing offer, the reload bonus at 10x is workable if you deposit near the cap, and the free spins at 30x are the hardest to turn into cash. The mixed payout reports and the case-by-case verification are the two things to weigh before you commit a balance.
This text draws on what the operator states about its promotions and on public reviews and player reports where those are reflected above. It was last updated in November 2026. We made no deposit or withdrawal ourselves. Where this text and the operator’s terms differ, the terms apply.