Online Slots Bonuses
Free Welcome Bonus
Boss the slots with £10 free when you register. We'll credit you with your free funds once your card is added to the account - there's no deposit required, you'll just be ready to start spinning your favourite slots completely free.
T&C's Apply. New players only. Opt in required. 99x wagering requirement. Maximum single stake with a bonus of £5. £50 max win and withdrawal for non-depositors. 7 day expiry. Only bonus stakes contribute towards wagering requirements. Not all games contribute towards wagering. 18+ Begambleaware.org
100% First Deposit Bonus, up to £50!
There's up to £50 in bonus funds up for grabs when you make your first deposit at Slot Boss. We'll match you 100%, giving you more to play your favourite slots.
T&C's Apply. New players only. Opt in required. 100% deposit match up to £50. 40x wagering requirement on bonus. Maximum single stake with a bonus of £5. 30 day expiry. Only bonus stakes contribute towards wagering requirements. Not all games contribute towards wagering. 18+ Begambleaware.org
This weekend, play with insurance here at Slot Boss. Opt in via the My Promotions page and get 100% Losses Back on Rainbow Riches. If you aren't a winner we'll refund you up to £5 back as bonus funds on Monday!
T&Cs Apply. Promotion will run from 00:01 Friday 24th May to 23:59 Sunday 26th May. Must opt in via the My Promotions page to begin promotion. Refund will be calculated as 100% of your net cash losses on Rainbow Riches. Losses will be refunded to your bonus balance. Bonus will carry a 2x wagering requirement. Minimum payout of £1. Maximum payout of £5. 18+ BeGambleAware.org
See if you can slay the Dragon... Opt in and stake £20 on Dragon's Luck and receive 10 free spins straight away!.
T&Cs apply. Promotion will run from 10:30 Monday 20th May to 23:59 Sunday 26th May. Opt in via the "My Promotions" page. Must stake £20 cash on Dragon's Luck to be instantly credited 10 free spins on the same game. Free spins are awarded at £0.10p per spin. Winnings from free spins will be paid into cash balance. 18+ BeGambleAware.org
Keep in touch
Never want to miss another bonus again? Stay up to date on all our promotions including free spins, losses back and deposit offers by making sure you're opted in to receive marketing. Just follow the link below to select how you want to hear from us.
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. **