One game that has been more or less excluded from this trend is roulette. Blackjack gave birth to games like Super Fun 21, Crapless Craps has become a popular variation on its namesake, and poker has been adapted into numerous table games that dot the typical casino floor. Over the years, game developers have tried their hand at altering and modifying many of the most popular games in the casino in order to add twists to familiar classics.