Injured Engine is a 1984 puzzle game released for the Commodore 64 by Imagic. The player must diagnose problems in a simulated automobile engine; the game aims to teach how engines work and how engine parts related to each other. It was created by an auto mechanic and a graphic artist. Imagic demonstrated it at the 1984 Consumer Electronics Show. Imagic designed it as part of an educational series that includes Microsurgeon.