The first shots have been fired in the conflict that will change the future of mankind. Brother Legions of Space Marines taking arms against one another. The noble Ultramarines are betrayed on Calth by the zealous Word Bearers bent on tearing down the Imperium. A dark ritual ignites the system’s star, sending both Legions underground to battle for their honor, their belief, the fate of the Imperium, or just to survive.

The Horus Heresy: Betrayal at Calth is a game of turn-based skirmishes between the genetically altered warriors of the 31st Millennium, The Adeptus Astartes. In the campaign, players control units of Space Marine Legionnaires, guiding them through the underground arcologies of Calth. Fight alongside units of Ultramarines ranging from basic Legionnaires, Veterans, and Sergeants, to elite units of Terminators, and the most venerable Contemptor Dreadnought. Dispatch the foul heretics of the Word Bearers using a mighty arsenal, from the ranged accuracy of Bolters, Plasma Guns, Flamers, and Rocket Launchers, to the close combat might of Chainswords, Power Fists, and Lightning Claws.

The Horus Heresy: Betrayal at Calth also includes several Multiplayer maps allowing players to fight as Ultramarines or Word Bearers in either objective based missions or deathmatch. Bring the full arsenal of your chosen Legion to bear against friends with private matches or against opponents across the world with built in matchmaking. Multiplayer mode is available to both PC and VR players, allowing both formats to play against one another.

As avid Warhammer 40,000 tabletop gamers, Steel Wool Studios set out to bring the lore of the Horus Heresy to life in an increasingly engaging narrative. Fans around the world can be immersed in the setting as if they were really there and master the ultimate living battlefield in a “human-scale” interactive experience.

Heresy: Betrayal at Calth is coming soon to Steam Early Access (PC and Virtual Reality) – the first VR game set in the Warhammer 40,000 universe!

 Early Access mode starts with the initial chapter of a five-part campaign. Single-player mode (VR and PC) will include a five-map narrative, while PvP Multiplayer has four maps and two play modes (Deathmatch and Objective Match). Each proceeding update will include a new chapter filled with new maps, weapons, abilities and units.  

Joshua Qualtieri, Co-Founder and Head of Development: “Our team has always wanted to play a Warhammer 40k Horus Heresy game where you actually felt like you were in the midst of the battle… where your mastery had true consequence. We can’t wait for fans like us to play this game and let us know how they feel and what we can improve on. That’s the great spirit of Early Access.”

Gameplay includes a single player campaign and multiplayer PvP skirmish mode, both can be experienced either on PC or in Virtual Reality.

• Original Horus Heresy Narrative: Set in the 31st Millennium on the planet of Calth, Magos Ohmnal Sarc commands a unit of Ultramarines. When he discovers corrupted data in the noosphere, Sarc is confronted with a faction of aggressive Word Bearers and a devastating plot of corruption within the Imperium. Developed by Black Library author, Rob Sanders, out-wit a plot that introduces untold threats and schemes against the Emperor.
• Single-Player Campaign: 24 combat scenarios exploring the conflict between two factions of Space Marines. The story progresses linearly and each level presents unique challenges intertwined with the drama of the narrative. 
• A Living Battlefield: While players decide on their next action or wait on their opponent, the world around them continues to animate and fight. 
• Multiplayer Skirmish Mode: Players can choose between the Ultramarine and Word Bearer factions. Units include Legionnaires, Terminators, Dreadnoughts and a cast of characters armed with everything from Bolters to multi-meltas to assault cannons. More character classes will be added up until the final game release.
• VR Mode: The “human-scale” view of Space Marine combat gives the player the feeling of being on the battlefield during 40k action. A world first VR game set in the Warhammer 40,000 universe.
• Cross-Platform Multiplayer Matchmaking: Play on either gaming PC, HTC Vive or Oculus Rift. As a turn-based game, PC versus VR provides no gameplay advantages, only differing user experiences of the world.