Slots continue to dominate the online gambling GGY in the UK, accounting for more than two-thirds of the total yield produced by operators.
As a result of this, casino operators are continuing to rely heavily on popular and themed slots as gaming trends continue to evolve, while creating welcome bonuses and packages that cater to slots enthusiasts.
You can find more about the topic in this article, but in the post below we’ll list the casinos that offer the best online slot bonuses in the contemporary marketplace.
1. The 888 Casino
We’ll start with the established and iconic 888 Casino, which is one of the UK’s longest-serving betting brand and one that caters to millions of players across the globe.
This brand is also renowned for offering generous welcome bonuses to players, with its most recent offering particularly appealing to slot players and casual players who want to make the most of their free gameplay.
When you initially register for an account at the 888 Casino, for example, you’ll receive £88 in free, no-deposit funds. There are no conditions or wagering requirements applied to this complimentary offer, although you will have to claim the bonus in 48 hours and all winnings are capped at £10.
Once you’ve completed your initial deposit of £10 or more, you’ll also trigger a 100% first deposit match up to the value of £100. This means that you bank up to £100 in additional free funds, while the value of the bonus added to your account will be subject to 50x wagering requirements (creating a £500 playthrough requirement on a deposit of £10).
There are minimal restrictions in terms of the slots you can play with your bonus funds, while this vertical also contributes heavily to the bonuses game weighting requirements.
Not only this, but you’ll find a huge range of popular slots titles available at the 888 Casino, including Starburst, Millionaire Genie and Gonzo’s Quest.
This meld of low and high-variance slots should appeal to both casual and serious players alike, enabling you to get the most from your initial deposit and bankroll.
Next up is 32Red, which is another popular and successful online betting brand with a significant UK market presence (despite its relative lack of history or representation on the British high street).
The site has also worked hard to create an appealing and popular games’ library in recent times, building a platform with more than 700 titles overall. The vast majority of these are slots, while seasoned developers such as Microgaming, NetEnt and Playtech are well represented on the site.
As for the site’s welcome offer, this currently provides an initial, no-deposit free bonus of £10 to all new players. This is widely available for use across the platform’s vast selection of slots, so you can immediately boost your bankroll with some no-strings cash!
Next up, you can claim a whopping 320% first deposit match up to the value of £160 when you initially credit your account, enabling high-stakes players to boost their bankroll considerably before they start playing.
A minimum deposit of £10 is required here, while the total value of the bonus funds added will once again be subject to wagering requirements of 50x.
32Red also boasts a diverse selection of both low and high-stakes slots, with titles such as Mega Moolah offering eight-figure payouts in some instances.
Even mid-variance 32Red slots such as Thunderstruck II and Jurassic Park can deliver significant payouts, while offering varied betting limits that should appeal to players of all descriptions.
3. Betfair Casino
Betfair differs from our first two entrants in some respects, primarily because it doesn’t offer a free, no-deposit bonus offer to new players.
However, it does provide a generous and diverse welcome offer, which effectively takes the form of a 300% first deposit match and a significant number of free spins.
More specifically, new players at the Betfair Casino will receive £40 to play with when they deposit £10 into their account, so long as they avoid using an ewallet such as Skrill or Neteller to transfer the initial funds.
You’ll also earn up to 100 free spins on selected slot titles, with these available to be redeemed once the first leg of the welcome bonus has been redeemed or lost.
Each spin has a fixed value of £0.10, while both portions of the offer are subject to wagering requirements of 35x the bonus (this is applied to any winnings earned during the free spins round).
While the winnings from the bonus as a whole are capped at £500, this is a significant sum of money, while the fact that the funds can be deployed across slots such as The Incredible Hulk, Rocky and Gladiator should also appeal to enthusiasts.
Just remember that you’ll need to opt-in to trigger the bonus, otherwise you’ll run the considerable risk of missing out!