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