300% SLOTS DEPOSIT BONUS
A 300% slots deposit bonus gives you triple the amount of money to play with.
Below we have created a list of the best UK slot sites offering 300% casino deposit bonuses. All the casinos adhere to UK gambling laws and licenses and are completely safe for you to play in 2023.
Up to 200 Free Spins (No Wagering Requirements) when you Stake £10 (Code: WELCOME200)
18+ Only. Min. deposit is £10. New players only. T&C's Apply. Read the full T&C's Apply and BeGambleaware #ad
100% Deposit Bonus up to £200 + 100 Spins on Legacy of Dead
18+. Min deposit £10. New players only.T&C's Apply and BeGambleaware #ad
100% Deposit Bonus up to £200 + 100 Bonus Spins on Starburst and Book of Dead
18+. Min deposit £10. New players only.T&C's Apply and BeGambleaware #ad
100% Deposit Bonus up to £200 + 100 Free Spins
18+. Min deposit £10. New players only.T&C's Apply and BeGambleaware #ad
100% Deposit Bonus up to £100 + 150 Bonus Spins
18+. Min deposit £10. New players only.T&C's Apply and BeGambleaware #ad
PLAY WITH A 300% SLOTS DEPOSIT BONUS

Casinos usually offer players 100% deposit bonuses. Every now and again a casino will double this to 200% but it is extremely rare for an online casino to offer a 300% bonus.
We have sweeped the casino industry to bring to you the casinos that are currently offering a 300% deposit bonus.
Don’t forget, 300% bonuses will usually come with terms and conditions attached to them which we will detail below.
TERMS AND CONDITIONS OF 300% DEPOSIT BONUS
You should check the terms and conditions of all casino bonuses.
In our table of 300% deposit bonus casinos, we have detailed the terms and conditions for you.
WHY CHOOSE A 300% BONUS?
- Gives you a huge starting bankroll
- Allows you to test lots of slots without risking too much of your own money, and instead play with the casinos bonus funds
OTHER SIMILAR BONUSES
Also, don’t forget to check out our full list of slots bonuses.
CONTRIBUTORS

Greetings, I’m Jean Prince
Jean Prince, also known as ‘The Hawk’ in our newsroom is the editor in chief at SlotsHawk.com. He always keeps a hawk eye on the slots market and never lets anything important slip out of his sight.
Editor in Chief since 2020