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