War World is a 3D mech combat simulator game developed and published by Australian company Third Wave Games (who are made up of former Rare alumni who have been involved in the development of such games as Banjo Kazooie, Donkey Kong 64, and others). It was released on Microsoft Windows in 2005, and 2008 for the Xbox Live Arcade service.

Planet WarWorld has been under perpetual conflict throughout its known history over various reasons (ranging from religious differences to territorial disputes to blood feuds between different sects of the inhabitants). Eventually, the largest groups of these people would form into corporate entities and would establish several neutral cities on the planet in the hopes of establishing commerce with the outside galaxy.