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