Best Casino Offers – UK

If you’ve read our slot reviews, you’ll know you can trust us to tell you if a slot is worth playing. We use the same approach with our recommended casino offers, and unlike other sites, we don’t recommend countless brands. Instead, we only promote the casinos where we love to play and feature only the best casino welcome bonuses in the UK. All our featured casinos are trusted brands that are UK-licensed, and all have fast payouts. So here are our top casino offers for the UK in February 2024!

Here are our top casino offers for the UK in February 2024!

BetFred-logo

T&C’s apply. New customers only. Register with code GAMES100. Deposit and stake £10 or more, within 7 days, on Slots at Betfred Games to receive 100 Free Spins on selected titles. Free Spins credited within 48 hours. Free Spins are valid for 7 days. E-Wallet & Card restrictions apply. SMS validation may be required. BeGambleAware.org

FREE SPIN OFFER

Stake £10, Get 100 Free Spins on Selected Games

WHY WE LOVE BET FRED

  • Trusted big brand
  • 24/7 Customer Support
  • Slots & more betting options under same roof
the pools logo

T&C’s apply. 18+, UK residents only. Players are only eligible to take part in one Welcome Offer, if you have already qualified for the sports welcome offer you will not be eligible for the Casino Free Spins offer. Both offers cannot be claimed. First deposit and Stake £10 on casino slots. On qualification of the promotion, you will receive Free Spins on Big Catch Bass Fishing. Qualifying players will have the Free Spins credited to their account the following day by 5pm. Free Spins will expire 7 days after award. Available only once to each new customer. BeGambleAware.org

FREE SPIN OFFER

Get 100 Free Spins when you sign up, deposit and stake £10 on Casino Slots

WHY WE LOVE THE POOLS

  • No cap on free spin wins
  • Low wagering requirements
  • Diverse game & betting options

18+. New players only. Min deposit £10. Bonus funds are 121% up to £100. Bonus funds are separate to cash funds and subject to 35x wagering requirements. Only bonus funds count towards wagering contributions. £5 bonus max bet. Bonus funds must be used within 30 days, and spins within 10 days. T’s&C’s and affordability checks apply. BeGambleAware.org

CASINO WELCOME BONUS

121% Deposit Bonus up to £100 

WHY WE LOVE TWENTY ONE

  • 24/7 Live Chat
  • High withdrawal limits
  • Great for high rollers
casumo 100% Deposit Bonus up to £100 + 20 Bonus Spins

T’s&C’s apply. New UK customers 18+ only. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect” and 100% Deposit Bonus up to £25 on first deposit. Min. deposit £10. 30x wagering requirement for Bonus Spins and 30x wagering requirement for Deposit Bonus (game weighting applies). Max. £5/spin or £0.50/line. 30 days expiry. Terms and Conditions apply. Please gamble responsibly BeGambleAware.org

CASINO WELCOME BONUS

100% Deposit Bonus up to £25 + 20 Bonus Spins

WHY WE LOVE CASUMO

  • Immersive rewards scheme
  • No withdrawal limits
  • A great all-rounder
Leo Vegas 50 Free Spins on Big Bass Splash

T&Cs apply. New players 18+ only. Opt-in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. BeGambleAware.org

CASINO WELCOME BONUS

Deposit Match up to £100 +50 Free Spins on Big Bass Splash

WHY WE LOVE LEO VEGAS

  • Excellent Support
  • Unlimited Withdrawals
  • Great for high rollers

T’s&C’s apply. New players 18+ only. Min deposit £10. 100% up to £100 + 30 Bonus Spins on Reactoonz. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement. Only bonus funds count towards wagering contribution. £5 bonus max bet. Bonus funds must be used within 30 days, spins within 10 days. Affordability checks apply. BeGambleAware.org

CASINO WELCOME BONUS

100% Deposit Match up to £100 + 30 Bonus Spins on Reactoonz

WHY WE LOVE PLAY GRAND

  • 24/7 Live Chat
  • High withdrawal limits
  • Extensive slot selection
Slots Magic Logo

T’s&C’s apply. 18+ only. Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £50. Maximum amount of Free Spins is 50. Game: Book of Dead, Spin Value: £0.10. WR of 30x Deposit + Bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance.BeGambleAware.org

CASINO WELCOME BONUS

100% Deposit Match up to £50 + 50 Free Spins on Book of Dead!

WHY WE LOVE SLOTS MAGIC

  • 24/7 Live Chat
  • High withdrawal limits
  • Wide slot selection
PlayOJO Logo

T’s&C’s apply. This offer is only available for first time depositors. 18+ only. Min deposit is £10. 50 Free Spins on Big Bass Bonanza. Spin Value: £0.10.  After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section.  No min withdrawal. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players that have been selected by PlayOJO. If you have arrived on this page not via the designated offer via PlayOJO you will not be eligible for the offer. OJO’s Rewards and Game Play policy applies. BeGambleAware.org

CASINO WELCOME BONUS

80 Free Spins on Big Bass Bonanza

WHY WE LOVE PLAYOJO

  • No wagering requirements
  • Great for new players
  • Huge slot selection

T’s&C’s apply. Welcome Bonus only available to new players making a min deposit of £10. Welcome Bonus only available for max 1st deposit up to £200. Welcome offer can be used only once upon 1st deposit and is valid for 30 days. 35 x wagering applies and some casino games such as progressive jackpot games are excluded from wagering requirements. The 100% bonus up to £ 200 will be paid out in 10% increments to your Main Account balance. Bet size limits apply. Players must be aged 18+. BeGambleAware.org

CASINO WELCOME BONUS

100% Deposit Match up to £200

WHY WE LOVE VIDEOSLOTS

  • Over 7000 slots!
  • 24/7 Customer Care
  • Fantastic loyalty bonuses
Turbonino Casino Logo

T’s&C’s apply. 18+ only. First Deposit Only. Maximum amount of Free Spins is 100. Free spins will be credited in the game Thor the Trials of Asgard. Free Spin Value: £0.10 per spin. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance. Bonus Policy applies. BeGambleAware.org

CASINO WELCOME BONUS

100 Free Spins on Thor- The Trials of Asgard

WHY WE LOVE TURBONINO

  • New big brand casino
  • Great for free spins
  • Diverse slot selection
EU Casino
Terms Apply. First Deposit Only. Game: Sahara Riches Cash Collect, Spin Value: £0.10, Max Free Spins: 100. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance. *Games are subject to availability. BeGambleAware.org

CASINO WELCOME BONUS

100 Free Spins on Sahara Riches Cash Collect With First Deposit

WHY WE LOVE EU CASINO

  • Telephone support
  • Manual flushing
  • Over 2000 Slots

The Best Casino Offers UK

Online Slot Master will point you in the right direction for the top online casinos that are the best slot sites, and offer the best casino offers in the UK. Whether you’re looking for free spins or enticing bonus offers, we’ve got you covered. Finding your favourite online casino is ultimately a matter of preference, and will probably end up depending on how often you win! However, there can be much more to it when choosing where to spend your money, with great customer service and fast payouts being amongst the top factors that we look for when determining the very best slot sites.

The Best Online Slot Casinos

All the casinos we feature at Online Slot Master must tick our boxes on quality. For example, we will never list any casinos in our top 10 that are not licensed with the UK Gambling Commission. In fact, the casinos we recommend will invariably hold many more licenses, and will also be independently audited. We only want to play at the top online casinos that are fair and transparent, so we will only recommend those who are. As slot lovers, we narrow it down further and only recommend the best online slot casinos.

All of our top 10 online casinos will have state-of-the-art encryption. This is not only important for your transactions, but also for your privacy. If a casino isn’t up to scratch in that regard, then they won’t be listed here. Finally, we expect all the casinos we list to protect their players with robust responsible gambling measures. Playing slots should be fun, and we won’t recommend anywhere that doesn’t have protection measures in place.

The Best Slots Welcome Bonus

Finding the best slots welcome bonus is down to your personal preference, but our list features the best online casinos in the UK at the moment with the best offers out there. Some players prefer casinos with deposit match bonuses, whilst others prefer free spins. Many of the casinos we feature offer a combination which means you get more for your money! Right now, you can get yourself 80 free spins on Book of Dead at PlayOJO, and you can 100 free spins on Thor- The Trials of Asgard over at Turbonino. Meanwhile, Casumo offers free spins and a deposit match, as does Play Grand and Slots Magic. So for the best slots welcome bonuses, you’ve come to the right place!

New Casino Bonuses UK

Picking the best slot sites to play at will often be influenced by the sign-up bonuses they offer. Many of our new UK casino bonuses match your first deposit up to a certain amount, and most will also offer free spins. You should also look out for casinos that have wager-free bonuses. PlayOJO ranks as one of the best UK casino offers at Online Slot Master because their bonuses come without the usual wagering requirements. This makes them great if you’re new to online casino play, or if you simply can’t be bothered working out how much you need to play before you cash out.

 

21 Casino & Play Grand Bonuses

 

Right now, you can take advantage of two fantastic bonuses with sister sites, 21 Casino and Play Grand. We love both of these casinos not only for the excellent range of slots, but also for their great sign-up bonuses. You can get a 121% deposit match at 21 casino, but if you fancy some free spins as well, head to Play Grand. They offer a brilliant 100% deposit match plus 30 free spins on Reactoonz. These are two of the most popular casinos we recommend and both have a very sophisticated feel to them. They also happen to be great for high rollers, and really look after you in terms of ongoing bonuses!

 

Cashback

It’s often worth looking beyond the initial sign-up bonuses at any online casino. Some of the best UK casino offers will also reward player loyalty. Videoslots features in our top online casino list because they offer a weekend booster where a proportion of your weekly deposits are returned to you as cashback. Other casinos offer similar incentives, and if you can’t see the offer immediately, it’s always worth asking via their online chat. Long before we started Online Slot Master, we would often just ask customer service for a bonus and they would oblige in a lot of cases as a reward for loyalty. In short, remember that no matter which online casino you play at, they will always want to keep your custom so don’t be shy in asking for bonuses!

Transparency & Accuracy

Online Slot Master brings you the very best online casino bonuses. We use affiliate links to promote the brands, and they pay us a commission if you use our links. This is at no cost to you and it ensures we can carry on doing what we love.

When displaying the offers, every effort is made to ensure accuracy. However, offers and conditions can change at short notice and we will not be held liable for any error or omissions, so please make sure you check the relevant terms and conditions before you play.

21 casino logo

121% First Deposit Bonus up to £100 

18+. New players only. Min deposit £10. Bonus funds are 121% up to £100. Bonus funds are separate to cash funds and subject to 35x wagering requirements. Only bonus funds count towards wagering contributions. £5 bonus max bet. Bonus funds must be used within 30 days, and spins within 10 days. T’s&C’s and affordability checks apply. BeGambleAware.org

BetFred-logo

Stake £10, Get 100 Free Spins on Selected Games

T&C’s apply. New customers only. Register with code GAMES100. Deposit and stake £10 or more, within 7 days, on Slots at Betfred Games to receive 100 Free Spins on selected titles. Free Spins credited within 48 hours. Free Spins are valid for 7 days. E-Wallet & Card restrictions apply. SMS validation may be required. BeGambleAware.org

PlayOJO Logo

First Deposit Match up to £100 +50 Free Spins on Big Bass Splash.

T&Cs apply. New players 18+ only. Opt-in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. BeGambleAware.org

playgrand logo

100% First Deposit Match up to £100 + 30 Bonus Spins on Reactoonz

T’s&C’s apply. New players 18+ only. Min deposit £10. 100% up to £100 + 30 Bonus Spins on Reactoonz. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement. Only bonus funds count towards wagering contribution. £5 bonus max bet. Bonus funds must be used within 30 days, spins within 10 days. Affordability checks apply. BeGambleAware.org

the pools logo

Get 100 Free Spins when you sign up, deposit and stake £10 on Casino Slots

T&C’s apply. 18+, UK residents only. Players are only eligible to take part in one Welcome Offer, if you have already qualified for the sports welcome offer you will not be eligible for the Casino Free Spins offer. First deposit and Stake £10 on casino slots. On qualification of the promotion, you will receive Free Spins on Big Catch Bass Fishing. Qualifying players will have the Free Spins credited to their account the following day by 5pm. Free Spins will expire 7 days after award. Available only once to each new customer. BeGambleAware.org

casumo casino logo

100% First Deposit Match up to £25 + 20 Free Spins on Sahara Riches Cash Collect.

T’s&C’s apply. New UK customers 18+ only. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect” and 100% Deposit Bonus up to £25 on first deposit. Min. deposit £10. 30x wagering requirement for Bonus Spins and 30x wagering requirement for Deposit Bonus (game weighting applies). Max. £5/spin or £0.50/line. 30 days expiry. Terms and Conditions apply. Please gamble responsibly BeGambleAware.org

PlayOJO Logo

80 Free Spins on Big Bass Bonanza with First Deposit. No wagering Requirements!

T's&C's apply. This offer is only available for first time depositors. 18+ only. Min deposit is £10. 50 Free Spins on Big Bass Bonanza. Spin Value: £0.10.  After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section.  No min withdrawal. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players that have been selected by PlayOJO. If you have arrived on this page not via the designated offer via PlayOJO you will not be eligible for the offer. OJO’s Rewards and Game Play policy applies. BeGambleAware.org

Slots Magic Logo

100% First Deposit Match up to £200 

T’s&C’s apply. Welcome Bonus only available to new players making a min deposit of £10. Welcome Bonus only available for max 1st deposit up to £200. Welcome offer can be used only once upon 1st deposit and is valid for 30 days. 35 x wagering applies and some casino games such as progressive jackpot games are excluded from wagering requirements. The 100% bonus up to £ 200 will be paid out in 10% increments to your Main Account balance. Bet size limits apply. Players must be aged 18+. BeGambleAware.org

Slots Magic Logo

100% First Deposit Match up to £50 + 50 Spins on Book of Dead.

T’s&C’s apply. 18+ only. Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £50. Maximum amount of Free Spins is 50. Game: Book of Dead, Spin Value: £0.10. WR of 30x Deposit + Bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance.BeGambleAware.org

Turbonino Casino Logo

100 Free spins on Thor Trials of Asgard with First Deposit.

T’s&C’s apply. 18+ only. First Deposit Only. Maximum amount of Free Spins is 100. Free spins will be credited in the game Thor the Trials of Asgard. Free Spin Value: £0.10 per spin. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance. Bonus Policy applies. BeGambleAware.org

EU Casino

100 Free Spins on Sahara Riches Cash Collect With First Deposit

Terms Apply. First Deposit Only. Game: Sahara Riches Cash Collect, Spin Value: £0.10, Max Free Spins: 100. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance. *Games are subject to availability. BeGambleAware.org

Best Casino Offers – UK

If you’ve read our slot reviews, you’ll know you can trust us to tell you if a slot is worth playing. We use the same approach with our recommended casino offers, and unlike other sites, we don’t recommend countless brands. Instead, we only promote the casinos where we love to play and feature only the best casino offers in the UK. All our featured casinos are trusted brands that are UK-licensed, and all have fast payouts. So here are our top casino offers for the UK in February 2024!

The Best Online Casinos

Online Slot Master will point you in the right direction for the top online casinos that are the best slot sites, and offer the best sign-up bonuses. Whether you’re looking for free spins or enticing bonus offers, we’ve got you covered. Finding your favourite online casino is ultimately a matter of preference, and will probably end up depending on how often you win! However, there can be much more to it when choosing where to spend your money, with great customer service and fast payouts being amongst the top factors that we look for when determining the very best slot sites.

 

The Best Slot Sites

All the casinos we feature at Online Slot Master must tick our boxes on quality. For example, we will never list any casinos in our top 10 that are not licensed with the UK Gambling Commission. In fact, the casinos we recommend will invariably hold many more licenses, and will also be independently audited. We only want to play at the top online casinos that are fair and transparent, so we will only recommend those who are. As slot lovers, we narrow it down further and only recommend the best slot sites.

All of our top 10 online casinos will have state-of-the-art encryption. This is not only important for your transactions, but also for your privacy. If a casino isn’t up to scratch in that regard, then they won’t be listed here. Finally, we expect all the casinos we list to protect their players with robust responsible gambling measures. Playing slots should be fun, and we won’t recommend anywhere that doesn’t have protection measures in place.

 

New Casino Bonuses UK

Picking the best slot sites to play at will often be influenced by the sign-up bonuses they offer. Many of our new UK casino bonuses match your first deposit up to a certain amount, and most will also offer free spins. You should also look out for casinos that have wager-free bonuses. PlayOJO ranks as one of the best UK casino offers at Online Slot Master because their bonuses come without the usual wagering requirements. This makes them great if you’re new to online casino play, or if you simply can’t be bothered working out how much you need to play before you cash out. 

21 Casino & Play Grand Bonuses

 

Right now, you can take advantage of two fantastic bonuses with sister sites, 21 Casino and Play Grand. We love both of these casinos not only for the excellent range of slots, but also for their great sign-up bonuses. You can get a 121% deposit match at 21 casino, but if you fancy some free spins as well, head to Play Grand. They offer a brilliant 100% deposit match plus 30 free spins on Reactoonz. These are two of the most popular casinos we recommend and both have a very sophisticated feel to them. They also happen to be great for high rollers, and really look after you in terms of ongoing bonuses!

 

Cashback

It’s often worth looking beyond the initial sign-up bonuses at any online casino. Some of the best UK casino offers will also reward player loyalty. Videoslots features in our top online casino list because they offer a weekend booster where a proportion of your weekly deposits are returned to you as cashback. Other casinos offer similar incentives, and if you can’t see the offer immediately, it’s always worth asking via their online chat. Long before we started Online Slot Master, we would often just ask customer service for a bonus and they would oblige in a lot of cases as a reward for loyalty. In short, remember that no matter which online casino you play at, they will always want to keep your custom so don’t be shy in asking for bonuses!

Transparency & Accuracy

Online Slot Master brings you the very best online casino bonuses. We use affiliate links to promote the brands, and they pay us a commission if you use our links. This is at no cost to you and it ensures we can carry on doing what we love.

When displaying the offers, every effort is made to ensure accuracy. However, offers and conditions can change at short notice and we will not be held liable for any error or omissions, so please make sure you check the relevant terms and conditions before you play.