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666 Casino Welcome Bonus

  • Sign up at 666 Casino
  • Make your first deposit and enjoy your 100% bonus up to £66
  • For a second deposit of a minimum of £20 you will be rewarded with 66 extra spins on the Big Bass Bonanza slot machine
90%

How do we rate bonuses?

The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.

Total bonus amount
88 %
Easy to reach
90 %
Bonus conditions
90 %
Casino rating
94 %

100% up to £66 on Your First Deposit + 66 Extra spins on Big Bass Bonanza

Get bonus

18+. New players only. Min deposit £20. Max bonus 100% up to £66 on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Spins expire after 24 hours. Gambleaware.org.  Full T&Cs Apply.

18+. New players only. Min deposit £20. Max bonus 100% up to £66 on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Spins expire after 24 hours. Gambleaware.org.  Full T&Cs Apply.

Bonus value

£ 72,6

Deposit required

YES

The bonus is for

New players
Fair conditions
Bonus can be used on
Slots
Slots

Bonus detail

Bonus

 100% up to £66 on Your First Deposit + 66 Extra spins on Big Bass Bonanza

Bonus amount

 £ 72,6

Deposit and get back

 100 %

Full conditions

  • Conditions for receiving a bonus

    100% up to £66 on your first deposit:

    • Create an account at 666 casino
    • Make your first deposit
    • But beware, the amount of your first deposit will determine the bonus amount!
    • You will need to deposit a minimum of £20 to qualify for the bonus. To get the maximum bonus value, you need to deposit £66
    • The casino will automatically double your deposit
    • You will need to wager the bonus a total of 35 times before you can cash it out
    • You have 21 days to meet these conditions

    66 extra spins on your second deposit

    • If you’ve already enjoyed your first deposit bonus from 666 Casino, trust us that it doesn’t end there
    • If you deposit a minimum of £20 as a second deposit, you’ll get a nice 66 spins added to your account
    • So you can spin 66x for free on Big Bass Bonanza from Pragmatic Play
    • The value of each Spin is £0.1
    • Winnings received through the use of extra spins shall not exceed £100
    • As with the deposit bonus, you will need to wager your winnings from these spins 35 times before they are credited to your real balance
  • Bonus time limits
    • The 666 Casino Welcome Bonus will be credited immediately after your first deposit of a minimum of £20 and you have 21 days to meet the requirements
    • Extra spins are awarded immediately after the second deposit and you have 24 hours to use them
  • Bonus wagering requirements
    • Both bonuses must be wagered 35 times before you can withdraw
Author:
Martin
Martin
Published:
Sign Up at 666 Casino

🎰 A Devilishly Good Welcome Offer at 666 Casino! 💰

Get ready for a red-hot welcome at 666 Casino, where new players can claim a devilishly exciting £66 bonus and 66 extra spins on your first two deposits! This sizzling offer is perfect for players who love top-notch slots and live casino games. Let’s dive into the details and show you how to claim this fiery welcome package! 🔥 666 Casino home page

How to Claim Your 666 Casino Welcome Bonus

  • Create an Account

    personal-details-666-casino

  • Sign up at 666 Casino and verify your details.

    666 casino login screen

  • Make Your First Deposit

  • Deposit a minimum of £20 to unlock your 100% bonus up to £66.

  • Second Deposit Bonus -Make a second deposit of at least £20 to get 66 extra spins on Big Bass Bonanza.

    💡 Tip: Be quick! The bonus and spins come with specific terms you won’t want to miss.

Big Bass Bonanza by Pragmatic Play
Play for free
Pragmatic Play

Big Bass Bonanza

Layout
5x3
Theme
Theme
🌊 Ocean
RTP
RTP
96%
Play for free
92 %

How do we rate slot machines?

We evaluate slot machines based on multiple criteria, from which we make our final verdict.

Design and theme
92 %
Features and playability
90 %
RTP and volatility
96 %
80 %
Players rating
80 %
Special features
Bonus Game
Mystery Win
Scatter Symbol

🔥 Full Details of the Welcome Bonus

First Deposit Bonus

  • 100% Bonus up to £66:
  • Deposit £20, get £20 extra and play with £40.
  • Deposit £66, get £66 extra and play with £132.
  • Wagering Requirement: 35x the bonus before withdrawing any winnings.

Second Deposit Spins

  • 66 Extra Spins on Big Bass Bonanza:
  • These spins will be credited instantly when you deposit at least £20.
  • Spin winnings are capped at £100 and need to be wagered 35x before withdrawal.
  • Spins expire after 24 hours, so don’t let them slip away!

📜 Important Terms to Remember

  • Minimum Deposit: £20 for both bonuses.
  • Maximum Bonus: £66 for the first deposit.
  • Wagering Requirement: 35x for both the bonus and extra spins winnings.
  • Offer valid only for new players.

🎲 What Else Does 666 Casino Offer?

At 666 Casino, the excitement doesn’t end with the welcome package! With over 1500 games, including slots, live dealer games, and classic table favourites like blackjack and roulette, there’s something for everyone. Plus, check out their regular promotions to keep your gameplay sizzling.

🏆 Don’t Miss Out on 666 Casino’s Devilishly Good Welcome Offer!

Ready to get started? Sign up now, make your first deposit, and let 666 Casino welcome you with £66 bonus cash and 66 spins. Don’t forget to explore other promotions and daily bonuses listed at BonusMenu.co.uk for even more ways to win big! 🔥

Sign Up at 666 Casino

666 Casino

666 Casino
666 Casino

666 Casino is a UK-licensed online casino known for its bold, devilish theme and a huge collection of slots, live dealer and table games. Operated under the UK Gambling Commission, it offers players secure gameplay with SSL protection and responsible gambling tools. New players can usually claim a 100% bonus up to £66 plus 66 free spins, with 35x wagering. The site frequently updates its slot library and takes part in big network promotions like Drops & Wins. While it’s a legitimate and entertaining platform, some players have reported slower withdrawals and strict bonus terms, so it’s best to play responsibly and always read the T&Cs before you dive in.

Top rated bonus 100% up to £66 on Your First Deposit + 66 Extra spins on Big Bass Bonanza
Get bonus All bonuses
Review   94%
Top rated bonus 100% up to £66 on Your First Deposit + 66 Extra spins on Big Bass Bonanza
Get bonus All bonuses
Review   94%

Casino Hub

666 Casino is a UK-licensed online casino known for its bold, devilish theme and a huge collection of slots, live dealer and table games. Operated under the UK Gambling Commission, it offers players secure gameplay with SSL protection and responsible gambling tools. New players can usually claim a 100% bonus up to £66 plus 66 free spins, with 35x wagering. The site frequently updates its slot library and takes part in big network promotions like Drops & Wins. While it’s a legitimate and entertaining platform, some players have reported slower withdrawals and strict bonus terms, so it’s best to play responsibly and always read the T&Cs before you dive in.

🧾 FAQ About 666 Casino Bonuses

More Bonuses? Why not? They’re here for the taking.

PlayOJO
Rating
94%

How do we rate bonuses?

The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.

Total bonus amount
92 %
Easy to reach
95 %
Bonus conditions
96 %
Casino rating
93 %
Deposit at least £10 and Get 50 FS on the famous Big Bass Bonanza slot by Pragmatic Play
Bonus detail Get bonus

Use the bonus spins offer at PlayOJO to get 50 FS on the Big Bass Bonanza slot. The minimum required deposit to activate the bonus is £10 and your spins can be played at the £0.1 chip size. Note that the bonus is not available for players from N.I. Irregular play may lead to the removal of rewards. Gambleaware.org. All the OJO Rewards and Game Play policies apply.

Playzee Casino
Rating
93%

How do we rate bonuses?

The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.

Total bonus amount
96 %
Easy to reach
90 %
Bonus conditions
90 %
Casino rating
93 %
Playzee Casino Welcome Bonus 100% up to £300 + 500 Zee Points
+ 100 Zee Spins on Starburst slot
Bonus detail Get bonus

18+ New players only, UK customers only. Min Dep £20. Max Bonus Bet £5. Offer: 100% of 1st deposit up to £300 + 100 Zee Spins on Starburst (first 10 credited on 1st deposit; rest credited at 07:00GMT at 10/day) + 500 Zee Points. Spins expire after 23:59GMT on day they’re credited. Winnings from each 10 spins capped at £50 & credited as bonus. Bonus funds expire after 30 days, are separate to Cash funds, & subject to 35x wagering of bonus + deposit amounts. Affordability checks apply. Terms Apply Play Responsibly. GambleAware.org

Casiku Casino
Rating
92%

How do we rate bonuses?

The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.

Total bonus amount
90 %
Easy to reach
93 %
Bonus conditions
93 %
Casino rating
90 %
Deposit £20 & Play with £50
+ 50 Wager-Free Spins on Big Bass Splash slot
+ Saturday Reload Boost
Bonus detail Get bonus

18+.New players only. Min deposit £20. Offer: 150% first deposit bonus up to £30 on slots + 50 wager-free spins valid on Big Bass Splash. To claim the spins: min of £20 first cash deposit wagered on slots by 23:59 GMT. Spins credited the next day and valid until 23:59 GMT. Spin winnings credited as cash and capped at £100. Bonus funds are separate to cash funds and subject to 40x wagering requirement (bonus + deposit). Only bonus funds count towards wagering contribution. £5 bonus max bet. Bonus funds must be used within 30 days. Affordability checks apply. Gambleaware.org.

Mr.Play
Rating
91%

How do we rate bonuses?

The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.

Total bonus amount
90 %
Easy to reach
93 %
Bonus conditions
92 %
Casino rating
86 %
Bet £10 and get a free bet token worth £10
Bonus detail Get bonus

18+, Welcome Bonus: New Players only, 1st Deposit, Min Deposit: £10, max £15 bonus, valid for 14 days, bets must be placed at a min. odds of 1/1 (2.00) or greater and be settled within 14 days of placement. System bets not eligible. Terms and Conditions apply. BeGambleaware.org

Mr.Play
Rating
91%

How do we rate bonuses?

The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.

Total bonus amount
93 %
Easy to reach
89 %
Bonus conditions
92 %
Casino rating
86 %
100 Bonus spins on cool slot machines
+ £200 in bonuses on your first three deposits
Bonus detail Get bonus

18+. Terms and Conditions apply. New players only. 18+. Min deposit £10, welcome package splits over 3 deposits. 35x wagering requirement applies to match up bonus. Offer valid for 1 week. 100 free spins split to 20 each day for 5 days. 50x wagering applies to free spins. BeGambleaware.org.

PokerStars
Rating
90%

How do we rate bonuses?

The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.

Total bonus amount
92 %
Easy to reach
85 %
Bonus conditions
80 %
Casino rating
90 %
Get a 100% bonus and match your deposit up to £500.
+ 50 Free Spins
Bonus detail Get bonus

18+New casino players only. Min deposit £20 with ‘FIRST500’ required. Max deposit £500. 5 redemption points per £1 required to convert Casino Instant Bonus into cash. Casino Instant and Free Spins expire in 7 days. Selected Slots only. Terms apply.

666 Casino
Rating
90%

How do we rate bonuses?

The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.

Total bonus amount
88 %
Easy to reach
90 %
Bonus conditions
90 %
Casino rating
94 %
100% up to £66 on Your First Deposit
+ 66 Extra spins on Big Bass Bonanza
Bonus detail Get bonus

18+. New players only. Min deposit £20. Max bonus 100% up to £66 on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Spins expire after 24 hours. Gambleaware.org.  Full T&Cs Apply.

Spinland
Rating
89%

How do we rate bonuses?

The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.

Total bonus amount
95 %
Easy to reach
85 %
Bonus conditions
85 %
Casino rating
89 %
100% Matched deposit bonus up to £300
Bonus detail Get bonus

18+ | New players only | First deposit of £20 | Initial Deposit is matched 100% up to £300 | Bonus spins are worth £0.10 each and available on Starburst | Bonus spins are active for 72 hours after claiming | Initial deposit, bonus funds and winnings from bonus spins have to be wagered 35x | Players have 30 days to complete wagering requirements | Only selected slots, scratchcards and keno will contribute 100% to the wagering requirements | GambleAware.org | T&C’s Apply

Warning: Play and gamble responsibly | Gambling may be addictive 18+ | Underage gambling is an offence | When the fun stops, stop.

Bonus summary

666 Casino Welcome Bonus: 66 Extra Spins + £66

The good thing about this bonus is that the first deposit determines the amount of your deposit bonus and the second deposit unlocks Extra Spins, so fulfilling the requirements won’t get in the way.

Review 666 Casino

Editor's rating 90%
Editor's
rating
Total bonus amount
88 %
88 %
Easy to reach
90 %
90 %
Bonus conditions
90 %
90 %
Casino rating
94 %
94 %

How do we rate bonuses?

The overall bonus rating is determined based on several factors: the amount of the bonus, the company's rating, the ease of obtaining it, the players' rating and the conditions for obtaining the bonus.

0%
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Bonus provider
666 Casino
Bonus type
Free spins, Welcome bonuses
Bonus value
£ 72,6
Bonus can be used on
Slots
Wagering requirement
35x
Minimum deposit to receive the bonus
£ 20
Deposit value to reach the maximum bonus amount
£ 86
The bonus is for
New players
Deposit required
YES
Bonus at a licensed casino
YES
Casino bonuses
666 Casino bonuses
Free spins
Welcome bonuses

Content author

Martin
Martin
Founder · Partnerships, website content, bonuses, reviews, and gambling in general

On the website Bonusmenu.co.uk, I manage content, SEO, and address customer needs. I have been in the industry for decades and know the answer to any question in the field. My specialization is the bonus section, reviews, and news from the world of games and casinos.

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Warning: Play and gamble responsibly | Gambling may be addictive 18+ | Underage gambling is an offence | When the fun stops, stop.

Bonuses

  • PlayOJO

    Deposit at least £10 and Get 50 FS on the famous Big Bass Bonanza slot by Pragmatic Play

    94%

    Detail Get bonus

    Use the bonus spins offer at PlayOJO to get 50 FS on the Big Bass Bonanza slot. The minimum required deposit to activate the bonus is £10 and your spins can be played at the £0.1 chip size. Note that the bonus is not available for players from N.I. Irregular play may lead to the removal of rewards. Gambleaware.org. All the OJO Rewards and Game Play policies apply.

Warning: Play and gamble responsibly | Gambling may be addictive 18+ | Underage gambling is an offence | When the fun stops, stop.