European Roulette (Begames) Slot - Review, Free Demo, Casinos, Bonuses European Roulette (Cogg Studio) Cogg Studios. . The game's theoretical return to player (RTP) is %. To start playing, load the game, place any bets on the roulette table, and spin the wheel. Return to player. Game Type. Try European Roulette (Cogg Studio) online for free in demo mode with no download or no registration required. May 26, · Table Games. %. The range of bets is quite diverse, you can. Stay updated on the. European Roulette (Cogg Studio) by Cogg Studios. This version is developed by Cogg Studio. The range of bets is quite diverse, you can. The game's theoretical return to player (RTP) is %. European Roulette (BGaming) is a roulette game by BGaming. This version is developed by Cogg Studio. American Roulette (Urgent Slots & Games ️ Claim Your Bonus and Win REAL.