Experience Jackbox Pearl Upgrade, casino game by Swintt. With an incredible 2500x multiplier, there are no limits for how much you can win. A game with 95% return to player and high volatility, is the one game you won't want to pass up. Playing a game for free is always an option, but the possibility of winning big when betting with real money can be quite tantalizing. We provide a wide range of casino games for you to enjoy. The game is available on both desktop and mobile phone.