666 Casino Review | 666 Casino Bonus Code: 100% up to £66 & 66 Free Spins

666 Casino Bonus Code

There is no 666 Casino bonus code required in May 2025. 

To claim this welcome bonus, simply click the link above.

• Deposit a minimum of £20
• You will then receive a 100% bonus, worth up to £66
• This bonus will expire after 21 days
• Once you then make a second deposit of at least £20, you will receive 66 free spins for Big Bass Bonanza
• The free spins will expire after 24 hours

666 Casino Bonus Code Wagering Requirements

The deposit-match bonus on your first deposit comes with 35x wagering requirements attached. This means that if you deposit the minimum of £20 and receive a £20 bonus, you will need to wager a minimum of £700 on games that contribute 100% towards wagering before making a withdrawal.

666 Casino Bonus Code Maximum Win Limit

There is no maximum win limit attached to the deposit-match bonus on your first deposit. However, the maximum you can win from the free spins bonus attached to your second deposit is £100.

666 Casino Bonus Code - Our Verdict

It would be wrong to class this as a double welcome bonus, as new casino players will not receive both bonus elements on their initial deposit. This split bonus offers a deposit-match bonus on your first £20 deposit, with a further 66 free spins added to your account once you have made your second £20 deposit. There are also 35x wagering requirements attached to the deposit-match bonus and a £100 win limit on the free spins bonus. Overall, a solid casino bonus, but one that comes with a few strings attached.

Full 666 Casino Review

Following a relaunch in 2022, 666 Casino is an innovative online casino that has proven popular with UK players. A unique welcome offer tied to their site name certainly catches the eye, while a collection of more than 3,500 casino games keeps them competitive in an extremely competitive UK casino market. 

Online Slots at 666 Casino

666 Casino boasts an impressive slots library, with more than 3,000 of the best UK slots currently available on-site. Their slots section is well laid-out, with a strong search function helping you to navigate this huge selection of games.

Perhaps the real standout here is their sizable collection of more than 100 Megaways slots. This includes top slot games releases like Crabbin’ for Cash Megaways, Eye of Horus Megaways and Gonzo’s Quest Megaways.

666 Casino’s Progressive Jackpot Slots

This casino also offers a decent collection of 40+ progressive jackpot slot machines. With the majority of this library provided by the hugely popular jackpot pool, Jackpot King, you will see jackpots that run into the millions.

666 Casino’s Live Casino

666 Casino offers a very strong live casino product, with 150+ live dealer tables available. The collection, which is provided by Evolution Gaming, Playtech and Pragmatic Play, features the usual mix of dozens of live blackjack and live roulette tables, as well as a number of live baccarat and live game show games.

Perhaps the highlight for me here was their exclusive live roulette tables, which are streamed directly from land-based casinos in Manchester and London’s Leicester Square.

666 Casino’s Classic Casino Games

Their classic table game offering is somewhat limited, with just a handful of classic blackjack and roulette games available.

666 Casino’s Mobile Casino

666 Casino has a casino mobile app, which is available to download in both the App Store and Play Store. Both apps have received a very limited number of reviews at this point.

• App Store - 3.0* (2+ reviews)
• Play Store - 3.3* (40+ reviews)

If you would rather not download an app, you can play mobile-optimised versions of their games via your mobile browser.

Deposit and Withdrawal Methods at 666 Casino

666 Casino accepts a range of different payment methods, including a selection of e-wallets. This is not an instant withdrawal casino, with average withdrawal times varying from two to five days.