In Game of Skulls you are playing against an AI, trying to predict its moves and come up with a counter strategy. The rules are simple but coming up with the right strategy is a serious challenge. Both you and the AI start with 12 cards. In each round, you both play a card on different stacks collecting penalty points. Whoever has the least amount of penalty points at the end wins. You can play multiple rounds and keep track of your overall score. The game has two difficulty modes. One mode for beginners that doesn't keep a persistent score and a challenge mode.