The game is set in the eponymous War World, ravaged by years of conflict and now thriving in the combative nature of its inhabitants. City-states use the planet as a training ground for their armed forces - and this is where your story begins. As a gladiator in a Mech arena, you must prove your worth to yourself - and to others.

Similar to Starsiege: Tribes focus on teamwork, players can guide and customize heavily armed mechs across 100 single-player levels in Story Mode, or set up quick offline death matches against bots. They can also take the fight online with a LAN multi-player combat and play classic Capture the Flag and Deathmatch modes along with an all new mode, Bomb Run.