Gibsonsystem is a fantasy mass combat game, which steals mechanics from various mass combat and skirmish games. The game is designed to use 28mm figures. In the system, regiments, single heroes, and mighty warmachines to battle each other on a large tabletop battlefield. Unlike WHFB, you can use any figure you own in this sytem, since we’ve designed a very balanced troop builder formula (and design tool).
So if you have cowardly dwarves, or heroic rat-men, or mummies or swamp creatures or Clan Wars infantry or historical vikings, you can pit them against each other in this system.