Warhammer: The Horus Heresy is a tabletop miniature wargame set in the universe of Warhammer 40,000, specifically focusing on the cataclysmic events known as the Horus Heresy. This epic conflict serves as a pivotal moment in the fictional history of the Imperium of Man, taking place during the 31st millennium. The game allows players to reenact the dramatic battles and pivotal events of this galaxy-spanning civil war, which was triggered by the betrayal of the Warmaster Horus, once the most favored son of the Emperor of Mankind, who turned against his father and led half of the Emperor’s Space Marine Legions in rebellion. The Horus Heresy game system provides detailed rules, beautifully crafted miniatures representing iconic characters and units from the lore, and extensive narrative campaigns that immerse players in the tragic and chaotic events that shaped the grimdark future of Warhammer 40,000.