Warhammer 40,000: Space Marine 2 is a third-person shooter set in the grimdark universe of Warhammer: 40,000. It is a sequel to Warhammer 40,000: Space Marine following the story of Titus, an ultramarine recently re-instated after being accused of heresy, a crime that saw him serving the deathwatch until his reinstatement. The game has three main modes; Campaign, Operations, and Eternal War.