According to the game, it is "a game to A-MAZE, astound and drive you completely insane". Um, right. Insanity is an ASCII-based (ie text-mode) maze game, where you must find your way through the maze while collecting items, avoiding enemies, picking up clues, and doing lots of other stuff. Its a weird little game but if you're into old DOS games this is a unique and interesting one to play. (Note that it will definitely need to be slowed down so use DOSBox or MoSlo available on the Essential Utilities page.)