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