The 21 Casino welcome package runs to €500 across your first three deposits, and the first of them comes with 21 free spins. The 21 casino bonus is credited once you enter the code WELCOME21 at the cashier, and every part of it carries a 40x wagering requirement before any of it turns into money you can withdraw.
In practice that means €100 of bonus money has to be played through €4,000 before it leaves your bonus balance. The terms decide whether only the bonus alone or the deposit plus the bonus counts towards that figure, so the first thing to settle is which base the operator uses. The package is spread over three deposits rather than paid in one go, which changes how much you need to play through before you see a withdrawal.
Key facts about the welcome package
- First deposit: a 100% match up to €100, plus 21 free spins, with the code WELCOME21.
- Second deposit: a 50% match up to €150, with the code WELCOME21.
- Third deposit: a 25% match up to €250, with the code WELCOME21.
- Wagering requirement: 40x on the bonus amount, with the free spins carrying their own terms.
- Operator: 21 Casino, trading under a Curaçao licence.
How the three-deposit package is structured
The shape of the offer rewards a player who plans to deposit more than once. A single €100 deposit takes the first stage in full: €100 of bonus money and the 21 free spins. Someone who stops there has seen a third of the total package and none of the two reload stages.
To reach the €500 ceiling, the deposits have to grow rather than shrink. The second stage adds 50% up to €150, so it takes a €300 deposit to fill it. The third adds 25% up to €250, which takes a €1,000 deposit to fill. Filling the whole package therefore means putting in €1,400 across the three deposits, and the bonus you receive is €500. That is the arithmetic of a declining match: the later stages give proportionally less for each euro you put in.
Our preference here is the first stage on its own. The 100% match is the only part of the package that doubles what you deposit, and it keeps the amount you have to wager at a level you can see clearly before you commit more money.
Other promotions sit alongside the welcome offer, and the operator lists them in its promotions area rather than at the cashier. Read each one’s terms separately, because a reload or a free spin offer can carry a different wagering figure from the welcome package.
What to read in the bonus terms before you deposit
- The wagering base: whether the 40x applies to the bonus alone or to the deposit plus the bonus.
- The free spin terms, which sit apart from the cash bonus and may carry a different requirement.
- The expiry date on the bonus and on the free spins, and how long you have to meet the wagering.
- Which games count towards wagering and at what percentage, since not every game contributes equally.
- The maximum bet allowed while a bonus is active, and what happens to the bonus if you exceed it.
- The minimum deposit that qualifies for each stage of the package.
Where players trip up on the 40x requirement
The wagering figure is the part of the offer most likely to surprise a new player, and the surprises follow from the conditions themselves.
- Taking the full package without planning the play-through. Three stages mean three separate wagering obligations, and each one has to be cleared before that stage’s bonus becomes withdrawable.
- Assuming the deposit counts towards the requirement. If the terms use the bonus alone as the base, a €100 bonus at 40x means €4,000 of play; if they use deposit plus bonus, the same bonus means €8,000. Check the base before you deposit, not after.
- Forgetting the free spins. They carry their own terms, so the 21 spins are a separate obligation from the cash bonus.
- Playing games that do not count. If a game contributes nothing or only a fraction towards wagering, time spent on it does not move you closer to a withdrawal.
- Depositing more to chase the later stages. The declining match means each extra euro buys less bonus, and the wagering grows with every stage you take.
A practical conclusion for your money: the first stage is the one worth taking if you want a clear picture of what you owe in play-through, because a single 100% match keeps the wagering figure small relative to the bonus. The later stages only make sense if you were going to deposit those amounts anyway.
Gambling is for adults only, 18+. If gambling stops being fun, free and confidential support services in your country can help, and it costs nothing to ask. Play only with money you can afford to lose, and treat a bonus as extra playing time rather than a reason to deposit more than you planned.
Claiming the bonus step by step
- Read the full welcome terms in the promotions area before you deposit anything.
- Decide which stage or stages you intend to take, and note the deposit each one needs.
- Make your first deposit and enter the code WELCOME21 at the cashier.
- Check that the bonus and the 21 free spins have landed in your balance before you start playing.
- Play through the 40x requirement on games that count towards it, keeping within the maximum bet.
- Request your withdrawal only once the wagering is complete, so the bonus has converted to withdrawable money.
Licence, operator and our verdict on the offer
21 Casino operates under a Curaçao licence. Before you deposit, you can read the bonus terms in full, confirm the wagering base and the game weighting, and ask customer support to clarify anything the terms leave open. Keep a note of the code you used and the stage you took, so a query later has something to point to.
Our verdict for this angle: the first stage of the package is the cleanest part of the offer, a 100% match up to €100 with 21 free spins and a wagering figure you can calculate before you commit. The declining match on the second and third deposits asks for larger sums for proportionally less bonus, and each stage brings its own 40x obligation. The package suits a player who reads the terms first and deposits deliberately; it does not suit anyone depositing to chase the later stages.
This text draws on what the operator states about its welcome package and terms. We made no deposit or withdrawal ourselves. It was last updated in November 2026, and where this text and the operator’s terms differ, the terms apply.