Set 10,000 years before the events of Warhammer 40K, The Horus Heresy concerns itself with the war between the different Space Marine Legions. Following a rebellion and betrayal from Horus, the Legion Astartes were divided into Loyalist Legiones and Traitor Legiones. This conflict between Loyalist Legiones and the Heretical Legiones frames the narrative of the game.
Using a modified version of Games Workshop’s Warhammer 40,000 7th edition ruleset, the game offers players who love the more ‘historical’ setting a way to act out battles that have been detailed in previous Black Library books. Players will choose to bring the history of Warhammer to the tabletop or rewrite history depending on who wins the battle and can use the unique rules, such as a reaction system, to bring a more fast-paced twist to an otherwise familiar war in The Horus Heresy.