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

Up to £100 New Player Bonus!

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

Bonus Key Qualifying Criteria: New Casino customers only. Deposit min. £10. Applies to first deposit to Casino only. Max. bonus £100. 15x wagering (game weighting applies) on deposit and bonus to make the bonus balance withdrawable. Time limits and T&Cs apply.

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

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

Bonus Key Qualifying Criteria: New customers only. UK&IRL only. Min deposit £20 . Bonus wagering 25x, game weighting applies. 100 Free Spins available after first buy-in & further 100 Free Spins available in each of the following 3 days (upon min buy-in of £20 per week). Full T&Cs apply.

100% Buy in Bonus, up to £300

William Hill Casino just got better. New single wallet across all products. 100% Buy in Bonus, up to £300

Bonus Key Qualifying Criteria: 100% Buy in Bonus, up to £300. Opt in required. New customers to Casino page only. Min Buy in £10. bonus value 100% of buy in. Max Bonus £300. 40x wagering. Max withdrawable £2,000. Bonus expires after 7 days. Stake contributions, country, currency, game restrictions and terms apply.

Up to £100 match Deposit Bonus plus 200 Bonus Spins

Up to £100 match Deposit Bonus + 200 Bonus Spins On deposit & Wager of £20+. Sign Up for Free and Choose Your Bonus. Mr Green the award winning Online Casino.

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

Up To £1,000 Welcome Package

10Bet Casino has the finest slots from the latest hotshot developers. 10Bet Casino online casino bonus. Up To £1,000 Welcome Package.

Bonus Key Qualifying Criteria: Up To £1,000 Welcome Package - New Customers; 18+; Min. deposit £15 (no Skrill/Neteller); Bonus = 100% of 1st deposit (up to £100), 50% of 2nd deposit (up to £300) and 25% of 3rd deposit (up to £600); Each bonus has 35x deposit and bonus rollover in 15 days for bonus winnings release; 2nd and 3rd bonuses can be rolled over on mobile only; Bonus for wagering, deducted upon winnings release; Max. bet with bonus funds is £5; Withdrawal before rollover results in bonus cancellation; Rollover stake contribution varies across games; Terms apply; Full T&Cs 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.

Double Your First Deposit up to £200 plus 10 Free Spins

Double Your First Deposit up to €200 plus 10 Vegas Free Spins.

Bonus Key Qualifying Criteria: Double Your First Deposit up to £200 plus 10 Free Spins. 18+, New players, £10+ deposit required, no e-wallets/prepaid cards,30x Playthrough on Bonus and 50x on Free Spins winnings. T&Cs Apply

Play With £88 Free No Deposit Bonus plus Up To £1,500 Welcome Bonus Package

UK online slot players welcome. Play With £88 Free No Deposit Bonus plus Up To £1,500 Welcome Bonus Package. Use Promocode: Welcome1

Bonus Key Qualifying Criteria: Play With £88 Free No Deposit Bonus plus Up To £1,500 Welcome Bonus Package. Deposit with Bonus Code: Welcome1. No Deposit Offer: 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, Welcome Bonus Package: £20 min deposit, 1st deposit immediate 100% up to £100 bonus, 2nd -5th deposits must be done and wagered 3 times within 7 days of the 1st deposit, to receive 30% up to £350 bonus per deposit, Bonus wins are capped at £500, To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days, Wagering req. vary by game, This offer may not be combined with any other offer, Deposit balance is available for withdrawal at any time, General withdrawal restrictions & full T&Cs apply: No Deposit Offer terms & Welcome Bonus Package terms.

£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.

100% Bonus Up To £200 plus 10 Free Spins

100% Bonus Up To £200 plus 10 Free Spins.

Bonus Key Qualifying Criteria: 18+. New Customers Only. 100% Bonus Up To £200 plus 10 Free Spins - 18+. New Customers Only, 10 Free Spins On Mobile Verification VERIFICATION (UK ONLY), 3 Day Expiry On Free Spins. 100% Deposit Match Up To £200. Available On Selected Games Only. 7-Day Expiry On Bonus. 40X Wagering (MAX BET £5) Before Bonus Balance Can Be Withdrawn. Wagering Is With REAL MONEY FIRST. Game Contribution Weightings Apply To Wagering Requirements. £10 MIN DEPOSIT + 2.5% FEE (MIN 50P). Not Available Using NETELLER Or SKRILL. Cash Balance Withdrawable Anytime + £2.50 Fee. T&Cs 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.