Discover the Best Online Slots · 1. All UK Slot Sites () · Bally Casino · Planet Sport Bet Casino · Casushi Casino · [HOST] Casino · Lottoland Casino · BetUK Casino. Best Online Casino Site for Slots: Winomania. Find your perfect match and win real money at the most trusted slot casinos in the UK. % Bonus up to £50 + Bonus Spins. Starburst (NetEnt) · 3. Kwiff Casino: Best Free Spins Slot Site. Immortal Romance (Microgaming) · 4. . Casumo · 3. Play a wide variety of online slots at the best UK slot sites. Leo Vegas: Best Mobile Slots Site. Best UK Slot Sites · 1. Book of Dead (Play 'n GO) · 2. JackpotJoy Casino: Best Progressive Jackpot Slots Site. Videoslots Casino · 4. Top UK casinos for playing slots · Duelz · Mr Vegas · Magic Red · MrQ · VoodooDreams · Luckster Casino · Winomania · Hotstreak Slots. Over Slots; Best Game Providers; Huge Live Casino Section. Best Features: Over slot games, including more unique slots like Scratch King. Find the best UK online casinos with the latest real money slot games, excellent bonuses, online betting, loyalty rewards and more. Bonanza Megaways. Magical Vegas Casino: Best Megaways Slot Site. Mr Vegas. You are. PlayFrank · 2. Fun Casino · 5. These generally come from leading software providers, with Starburst, Book of Dead, Gonzo's Quest and Bonanza being among the most popular slots.