200% Slots Welcome Bonus Offers

Here is a list of UK casinos offering a 200% slots welcome bonus for new customers. With these UK slot sites you get double your first deposit in bonus funds, giving you more chance to try the games on offer and chase down the wins.

Remember to check the terms and conditions to see what games you can play with your bonus and what terms and conditions apply – including wagering requirements, minimum deposits and maximum bonuses, and expiry terms. You can learn more about these on our UK slot bonus list page.

All casinos listed here are licensed and regulated under UK law by the UK Gambling Commission.

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Barz Casino

£500 Welcome Bonus + 50 Bonus Spins

New Slot Site

18+. New Players Only. 1 bonus offer per player. Min. deposit £20. Max. bonus bet is £5. Free spins on selected games only and must be used within 10 days. Winnings from free spins credited as bonus funds and capped at £20. Bonus funds expire in 30 days, unused bonus funds will be removed. Welcome Offer is 200% match up to £500 + 50 free spins on your 1st deposit, 40% match up to £500 + 20 free spins on your 2nd deposit, and 60% match up to £500 + 50 free spins on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Terms apply. Please gamble responsibly. www.gamblingtherapy.org

Software : NetEnt, Microgaming, Big Time Gaming, Play n Go, Quickspin, Push Gaming, Thunderkick, Pragmatic Play, Play'n Go
Cash-out time : Up To 24 Hours
21 Casino

121% Up To £300 Bonus

Plus Great Loyalty Rewards

18+. New players only. Min deposit £10. Bonus funds are 121% up to £300 and separate to Cash funds. 35x bonus wagering requirements apply. Only bonus funds count towards wagering requirement. £5 max. bet with bonus. Bonus funds must be used within 30 days, otherwise any unused shall be removed. Terms Apply. www.begambleaware.org.

Software : Big Time Gaming, Play n Go, Blueprint Gaming, NetEnt, Quickspin, ELK
Cash-out time : Under 24 hours
Jaak Casino

200% Bonus up to £20

Play With £30 & 10 Spins

New Players Only 18+. Minimum Deposit: £10. Maximum Offer: 200% Bonus up to £20 & 10 Spins [Starburst]. Bonus & Spins winnings must be wagered 35x before withdrawal. Promo Code: GET200. Withdrawal & full T&Cs apply. Valid until 31/12/2020. Ts and Cs Apply. www.begambleaware.org.

Software : Slingo Games, NetEnt, Microgaming, IGT, Blueprint, Thunderkick, NextGen
Cash-out time : Up To 72 Hours

EXCLUSIVE!!! Get 50 Free Spins!

Use Bonus Code BUZZ

First-time depositors only (18+ UK exc NI). Min Deposit £10. Max Offer 50 Free Spins [Game of our Choice]. Free Spins winnings are capped at £5.00 and credited as bonus funds with 40x wagering. Free Spins expire after 7 days. Promo code: BUZZ. Deposit balance is available for withdrawal at any time. General withdrawal restrictions & full T&Cs apply. Valid until 31/12/2020. www.begambleaware.org.

Software : Slingo Games, NetEnt, Microgaming, Blueprint, IGT, NextGen, Thunderkick
Cash-out time : Up To 72 Hours


Our Top Pick – Dunder Casino – 200% Extra With Your  First Deposit

At TheSlotBuzz our favourite new customer offer with a 200% slots bonus is Dunder Online Casino.  At this recommended UK slot site, on the scene since 2015, you get 200% extra up to £50 with your first deposit of £20 or more. This, plus 180 free spins to play on NetEnt’s Starburst slots, and a further 50% up to £150 on your second deposit and 25% up to £400 on your third deposit.

This offer is only available to new customers who are 18 and over – check the Dunder Casino site for full terms and conditions.

Dunder offer over 1,000 slots, table and live dealer games, less than 24 hour withdrawal processing, and a really slick site design. In particular, slots fans will love their easy interface with a smart menu filter system, and a wide range of games. Our favourite suppliers are all on there – check out Big Time Gaming’s top titles like Extra Chilli, Bonanza, White Rabbit and Danger! High Voltage. Plus the latest slot games from Thunderkick, Play n Go, NetEnt, Microgaming and many more can all be played with your 200% slots welcome bonus!

Have fun!



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