Online Casino Bonuses

Sign Up Bonus

Free Welcome Bonus

Boss the slots with a £10 free bonus when you register at Slot Boss. There's no deposit required - just sign up and head to your 'My Promotions' page to claim and you'll be ready to start spinning your favourite slots completely free.

T&C's Apply. New players only. Opt in via the “My Promotions” page within 3 days of registration. 99x wagering target. Max single stake with a bonus is £5. £50 max win and withdrawal for non-depositors. Only bonus stakes contribute towards wagering requirements. Wagering contributions vary. 14 day expiry. Not all games contribute towards wagering requirements. £10 free paid as bonus funds. 18+

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First Deposit Bonus

100% First Deposit Offer

There's up to £200 in cash up for grabs when you make your first deposit at Slot Boss. Just make your first single deposit of £20, £50, £100, £150 or £200 and wager 30x for a matched cash reward.

T&Cs apply. New players only. Opt in via the “My Promotions” page within 14 days of registration. Deposit £20, £50, £100, £150 or £200 as a single first deposit and wager 30x for a matched cash reward. Not all games contribute towards wagering. Wagering contributions vary. Only cash stakes will qualify. 18+

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Current Player Promotions

No wagering requirements

Wager-free spins

At Slot Boss we guarantee that all the free spins we give away carry no wagering requirements. That means all winnings are yours to keep.


** Any bonus issued is valid for a period of 30 days from the date of issue unless otherwise stated in the specific promotion. Any remaining/unused bonus at the end of the stated period will be removed from the player’s account. See terms and conditions for full promotional terms. **

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