Fantasia Diamond is a text adventure game by Kim Topley and published by Hewson Consultants. It was released in 1984 for the Amstrad CPC, Acorn Electron, ZX Spectrum and BBC Micro home computers. Unusually for Hewson, it was not released on the Commodore 64 with the game's author stating when asked "The answer to your question is simply that I didn’t own a C64 at the time".