Caps is a different take on the classic game of Peg Solitaire. Instead of pegs, thereâ€™s Caps. There are 40 Levels and an Editor for creating and sharing your own puzzles. If you feel like youâ€™re an expert at this game, then turn on Expert Mode for an added challenge to each level. Caps may seem easy to play at first, but youâ€™ll be hitting that undo button a lot later on.