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Release date: 26 July 2025
Warhammer: The Horus Heresy
Format: hardback rules supplement
Covers the Loyalist and Traitor Mechanicum
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Liber Mechanicum is your guide to fielding the Loyalist and Traitor Mechanicum — the cold, relentless forces of the Machine God — in the Age of Darkness. Crammed with background, army rules and artwork, it brings the battle-automata, Tech-Priests and arcane war-engines of Mars to the tabletop in full. A must for Mechanicum commanders.
At a glance
Game: Warhammer: The Horus Heresy
Format: hardback rules supplement
Covers the Loyalist and Traitor Mechanicum
Language: English
Why you'll want it
Full army rules for the Mechanicum
Rich background and artwork throughout
Everything you need to unleash the cold legions of Mars on the battlefield.
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