Online Slot Bonuses

New Customer Offers, T&C’s Apply, 18+, Wagering Requirements Apply apply to each of the offers below, click “Claim Bonus!” for more information.

Casino Bonus Bonus Info Review Claim Bonus

Get Up To £100 in Bonus Cash plus 200 Free Spins

Up to £100 matched bonus on your first deposit plus 200 Bonus Spins. Deposit to join the Mr Green journey with 100 bonus spins on Starburst, released immediately. Then 5 spins daily for the next 20 days.

Bonus Key Qualifying Criteria: New players only. 18+. 35x wagering applies to Bonus Cash and Free Spins. Deposit of £20+ unlocks a 100% Match Bonus up to £100 in Bonus Cash, subsequent wager of £20+ on slots unlocks 100 Starburst Free Spins and 100 additional Free Spins (5 per day over 20 days).

200% up to £400 Slot Bonus plus 100 Free Spins

200% match bonus up to £400 to play on their selection of slots. Plus once you have played your bonus, Betfair Casino will add an additional 100 free spins to enjoy on the house.

Bonus Key Qualifying Criteria: New Players from UK&IRL only. Min buy-in £20. Bonus wagering 35x on eligible games. Spins available day after bonus is lost/redeemed, 10 per day for 10 days, no wagering. Full T&Cs apply.

50 Free Spins

William Hill Casino just got better. New single wallet across all products. 50 Free Spins For All Players.

Bonus Key Qualifying Criteria: Opt-in required. No deposit needed. New and existing UK customers. Max 50 free spins. Max 10 free spins per day for max 5 consecutive days. Daily free spins expire within 24 hours. Age of Gods games only. 40x wagering. Max withdrawal £20 per day. Player, currency, game restrictions and terms apply.

Deposit £10 Play With £60 plus 20 Free Spins

Paddy Power Casino, play over 300 online slots. Deposit £10 Play With £60 plus 20 Free Spins.

Bonus Key Qualifying Criteria: UK & IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at£500. Spins available after bonus is redeemed/lost. 10 per day with no wagering. Full T&Cs apply.

See Site For Latest Promotions

See Site For Latest Promotions. Bet365 offers New Slot Games.

Bonus Key Qualifying Criteria: See Bet365 Site For Latest Promotion Terms.

Double Your First Deposit up to £200

Double Your First Deposit up to €200.

Bonus Key Qualifying Criteria: +18, New Players Only, £10+ Deposit Required 30x Wagering and T&Cs Apply.

Play with £88 Free No Deposit Bonus plus 200% Up To £300 Bonus

Play with £88 Free No Deposit Bonus then get 200% Up To £300 Bonus With Your 1st Deposit. Bonus Code: LUCKY888.

Bonus Key Qualifying Criteria: New players only, £88 is granted in FreePlay (FP), FP must be claimed within 48 hrs of receiving the email and expires after 14 days, FP wins are credited as bonus and capped at £15, exc. JP win, Special Offer: £20 min deposit, 200% up to £300 Bonus, Bonus wins are capped at £500, To withdraw bonus & related wins, wager 50 x (bonus amount) within 21 days, Restrictions apply to deposit until wagering requirement fulfilled, Wagering req. vary by game, This offer may not be combined with any other offer, Withdrawal restrictions & full T&Cs apply.

£20 Free Welcome Bonus

Get up to £40 in Welcome Bonuses. free £20 when you deposit and play plus free £20 no deposit bonus if you have visited any one of the 56 Grosvenor Casinos across the UK.

Bonus Key Qualifying Criteria: First Deposit only. Min £20 Deposit, 5x Wagering. T&Cs Apply.

50 Fair Spins No Max Bet, No Max Win

50 Fair Spins – No Max Bet, No Max Win. 1 Fair Spin for every £1 deposited up to 50 Fair Spins. Min dep £10. Fair Spins on Starburst, Hansel & Gretel, Aloha Cluster Pays and Shangri-La Cluster Pays.

Bonus Key Qualifying Criteria: 18+. New Customers Only. 1 Free Spin For Every £1 Of First Deposit Up To 50 Free Spins. £10 Minimum Deposit + 2.5% Fee (Min 50p). 3-Day Expiry On Free Spins. £20 min Withdrawal + £2.50 Fee. Free Spins Available on Starburst, Aloha Cluster Pays, Finn And The Swirly Spin and The Legend Of The Shangri-La Cluster Pays Games Only. Full T&Cs Apply.

£1,000 Free Casino Welcome Bonus

100% match bonus based on first deposit of £20+. Additional bonuses available on 2nd and 3rd deposits up to a bonus of £1,000.

Bonus Key Qualifying Criteria: New customers only. Opt-in required. 100% Match Bonus up to £250 on 1st deposit of £20+. Additional bonuses of up to £250 on 2nd deposit of £20+ and up to £500 on 3rd deposit of £20+. 50x bonus wagering applies. Credit Card, Debit Card & PayPal deposits only. Other conditions apply.

 

Whilst the sheer number of online casinos trying to woo you to play their online slot games can be somewhat overwhelming, this fierce competition comes with the pleasant benefit that the promotional bonuses offered to keep and retain players have become pretty keen.

Of course it’s vitally important to choose where to play based first and foremost on the reputation of an online gaming site for secure and fair play but, if that box is ticked, hunting out the best online casino bonus packages can be a canny way to get the best value for money out of your online slots sessions.

Casino bonuses come in several flavours, but the most common incentive you’ll see advertised is the “Welcome Bonus” aimed at bringing new players through an operator’s virtual doors. These typically break down into two types – the ‘no deposit’ bonus and the ‘match’ bonus. The first is a very attractive bonus to any new player seeking to explore a site’s online slots, since it’s a gift of a bundle of free cash to splash on your entertainment without requiring any deposit into your new player account after signing up.

The ‘match’ bonus is a complementary incentive of free bonus money that is calculated as a percentage of a player’s first deposit of real money into their account. The common figure for this is 100% so it effectively doubles your spending power, matching your first deposit pound for pound up to a specified limit.

After you’ve pocketed a site’s Welcome Bonus, you’ll often find that’s not the end of the bonus story at the best online casinos since retaining your custom is becoming increasingly important too, so be aware of the loyalty bonuses on offer when researching where to play. These are less uniform than the Welcome Bonus packages, but common rewards are ‘comp’ or loyalty points that accrue as you make use of your account and can be redeemed for cash or prizes, or reload bonuses that are offered as ‘match’ bonuses on a deposit other than your first as a new player.

One final bonus to look for if your primary concern is playing the best online slots is a freespins bonus. This is becoming an increasingly popular offer, and is a gift of a fixed number of freespins to play on specific slots – a nice way to try out some great games with the added excitement of winning extra bonus money from those free-spinning sessions.

Now, betting sites and online casinos are clearly not operated as charities so all extra bonus money paid to you will come with some rules attached – for obvious reasons it would be madness if you could simply cash it out straight away – and this is called the ‘wagering requirement’. Put simply, this is a requirement that all bonus money (and only bonus money) has to be played through a specified number of times before the player can freely cash it out.

There may also be limitations on which games can contribute to a wagering requirement and how much of each wager is counted. This can all seem a bit complicated, however if you regard bonus money as simply extra funds to spend on playing your favourite slots you’ll find it’s a great way to wring the best value-for-money out of your online sessions.