Grand Monster Slam is a video game for the Amiga, Commodore 64, Atari ST and DOS. It is somewhat based on the 1985 arcade game Penguin Wars. In Amiga Power's first All Time Top One Hundred in the inaugural 'Issue 0', it was declared to be the 100th best Amiga game of all time. It never reappeared in the top 100 and its initial inclusion was said to be due to the insistence of a single writer. In March 2017 the source code of the game became available via the Internet Archive.

The game is based on the fictional Grand Monster Slam tournament set on the fantasy world of GhoID. The competitors of Grand Monster Slam are drawn from staple fantasy races including trolls, orcs, ogres and imps. Player control unnamed dwarf. The final boss is a golden goblin named Winner, based on the logo of the developer, Golden Goblins.