Total War: WARHAMMER 40,000 integrates the Total War series' established turn-based grand strategy and real-time battle mechanics within the Warhammer 40,000 science-fantasy universe. Developed by Creative Assembly, this entry challenges players to command iconic factions, customize their war machines, and engage in devastating battles across the stars. Players expand their galactic empire turn by turn, capturing planets, upgrading fleets, and managing a war economy. On the ground, armies deploy for tactical real-time engagements, where unit positioning and ability usage determine victory.
The game provides command over four distinct factions: the Space Marines, Orks, Aeldari, and Astra Militarum, each possessing unique gameplay features, weaponry, and war machines. Players customize their armies by naming warbands, selecting colors, and imbuing units with tactical abilities, traits, and wargear. The galactic sandbox campaign allows for the conquest and development of strongholds, orbital bombardments, and the deployment of apocalyptic weaponry to erase entire planets. Real-time battles feature faction-specific units, including veterans, elite squads, walkers, and immense war machines, with dynamic destruction reshaping terrain and creating new tactical opportunities.