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