Set in the grim future of the Warhammer 40,000 table-top game, Fire Warrior is a first person shooter where the player spends a day in the life of a Tau (an alien race) commando. Charged with rescuing an immortal who has been captured by the human Imperium, he will soon realize there are darker forces at work.

The game offers a twenty-one mission single player story as well as multiplayer death matches, team death matches and capture the flag for up to eight people online. Players can use and pick up a wide variety of weapons of both Tau and extraterrestrial origin including a sniper rifle as well as healing capsules, to confront both men and vehicle enemies.