Games Workshop

Liber Mechanicum – Forces of the Omnissiah Army Book

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This book is your essential guide for leading the Cult Mechanicum in Warhammer: The Horus Heresy, offering 152 pages of rules for units, wargear, Titans, and Knights, along with lore and heraldry guides for diverse Mechanicum forces.
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In the enigmatic era of the 31st Millennium, the Cult Mechanicum emerges as a formidable force, bearing the arcane knowledge of science and a legion of battle-automata and cybernetic soldiers under the calculating guidance of Tech-Priest overlords. The Lords of Mars, masters of the technology that has shaped the vast Imperium, wield their formidable arsenal as the Horus Heresy unfolds, pledging allegiance to both Loyalist and Traitor causes.

This essential guide is tailored for those who seek to lead Mechanicum armies in the epic battles of Warhammer: The Horus Heresy. It encompasses all the necessary rules to command the diverse array of lethal and esoteric machines and troops of the Taghmata Omnissiah, whether they stand with the Emperor or the Warmaster. Within these pages, you’ll find comprehensive insights into the war engines and strategies of the Titan Maniples and Questoris Households, along with the rules needed to faithfully depict them on the battlefield. With this knowledge in hand, you can fully immerse yourself in the awe-inspiring world of the Cult Mechanicum and the pivotal role they play in this enthralling chapter of the Warhammer universe.

What’s inside the Liber Mechanicum – Forces of the Omnissiah Army Book

This 152-page hardcover book offers a treasure trove of essential content:

  • Thorough rules and unit profiles encompassing every unit, weapon, and piece of wargear available to the Taghmata Mechanicum, Titan Maniples, and Knight Houses in Warhammer: The Horus Heresy.
  • Warlord Traits, a distinctive Reaction mechanic, Cybertheurgy, and Orders of High Techno-arcana, granting you the power to harness the Mechanicum’s enigmatic abilities on the tabletop.
  • Rules for deploying two Divisio Tactica: the Titan Legions and the Questoris Households, broadening your strategic options.
  • Get to know three distinctive characters: Calleb Decima Invictus, an advocate of the Loyalists, and the formidable Traitors, Archmagos Draykavac and Archmagos Anacharis Scoria.
  • Immerse yourself in a captivating visual showcase featuring various Mechanicum forces. This includes heraldry markings, iconic emblems, infantry and vehicle color schemes, and a gallery of stunning photography.

To fully utilize the wealth of information within this book, having a copy of the Warhammer: The Horus Heresy – Age of Darkness Rulebook at your disposal is essential.

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