We have one math "game" (addition, subtraction, multiplication) that you can download onto your computer. It is compatible with Windows systems only (no Mac). When you download the game, you will be given options to "run" or "save" the executable file. You should save the file to your desktop. When the download is complete, you can then "play" the game by double-clicking the file (named "SnakeMath.exe"). Download SnakeMath.exe (3.2 mbytes can take 15 minutes to download on a standard phone line.)