21kCasino Welcome Bonus

Deposit £10 and you start with £20 in your balance, plus 50 free spins on Big Bass Bonanza.

The 21kCasino welcome bonus matches your first deposit at 100% up to £50. Deposit £50 and you collect the full £50, with the spins on top. Wagering sits at 10x on both the bonus and the free spin winnings, well below the 35x to 40x that many UK casinos attach to a sign up offer.

Do you need a welcome bonus code? No. I registered a test account and found no field for a welcome code. You select the offer on the Promotions page, deposit, and the bonus lands in your balance within a minute of the payment clearing.

How to claim the 21kCasino welcome offer

My test run from registration to first spin took about four minutes. These are the steps in order:

  1. Register a new account at 21kCasino with your real details.
  2. Complete the sign-up steps and log in.
  3. Select the welcome offer on the Promotions page before you deposit.
  4. Make your first deposit of £10 or more.
  5. Check your balance for the 100% match once the payment clears.
  6. Launch Big Bass Bonanza to play your 50 free spins at £0.10 each.
  7. Meet the 10x wagering requirement within 30 days.

Set a reminder for day 30. The clock starts when 21kCasino credits the bonus, and the casino removes any unwagered bonus and the winnings from it when the 30 days end.

21kCasino Welcome Bonus Terms and Conditions

The slots-only rule and the £5 bet cap catch out new accounts. Read the terms before you deposit.

Who can get this welcome offer?

The 21kCasino new customer offer is open to UK residents aged 18 or over who make a first deposit on a new account. If you already hold an account, the Promotions page shows other offers instead. Roulette, blackjack and live games add nothing to the 10x requirement, so a table game fan will find the wagering slow. The 50 free spins run on one game, Big Bass Bonanza, with no option to swap.

Terms and Conditions

Deposit and bonus: minimum first deposit £10. Maximum bonus £50, credited when your deposit clears.
Free spins: 50 spins on Big Bass Bonanza, spin value £0.10.
Wagering: 10x the bonus and 10x the free spin winnings. Slots count. Complete within 30 days.
Maximum bet: 10% of the bonus and free spin winnings (minimum £0.10), or £5, whichever is lower.
Notice: bonuses do not change your chances of winning. Every game result is random. Enjoy the promotions responsibly.

21kCasino Welcome Bonus FAQs

How does the casino welcome bonus work?
21kCasino matches your first deposit at 100% up to £50 and adds 50 free spins on Big Bass Bonanza at £0.10 each. You deposit at least £10, and a 10x wagering requirement applies to the bonus and the free spin winnings.
How do I release the bonus?
Wager the bonus 10 times on slots. A £50 bonus means £500 in total bets. If your free spins win £12, you wager another £120 on slots. You have 30 days to finish both.
Can you withdraw the bonus money?
No. The £50 bonus stays in play on slots. Winnings you make with it move to your cash balance once you meet the 10x requirement, and you can then withdraw them.

Other 21kCasino offers, features and loyalty rewards

Once you finish the welcome offer, the Promotions page lists what comes next. Three features are worth knowing about from day one.

Loyalty Levels

You earn points on every real-money spin, and each new level unlocks bigger perks. T&Cs apply.

Demo Mode

Try slots without staking a penny. You learn the mechanics, bonus rounds and volatility before you risk a pound. T&Cs apply.

Daily Picks

Check Daily Picks before each deposit to see the promotions live at 21kCasino today. A current pick may suit your style better than the standard offer. T&Cs apply.