Warhammer started as tabletop wargame where two or more players compete against each other with "armies" of 25 mm – 250 mm tall heroic miniatures. The rules of the game have been published in a series of books which describe how to move miniatures around the game surface and simulate combat in a "balanced and fair" manner.

This has grown into a multiplatform gaming franchise with various game available to play on PC, console and mobile.