Themes: classic, Vegas, neon, simplistic, retro, lucky numbers,.Game Type: 3 reels, 1 payline video slot.This means it’s easy to learn and navigate so you can enjoy the action right away as you play for up to 133.33x your stake! MAIN FEATURES Crazy 7 is one of the simplest online slots around, with only a single payline and straight forward wins, plus no bonus features.