HORUS HERESY: LIBER CUSTODES (ENG) (Release 2026-04-04)

Liber Imperium is a rules book for Legio Custodes, Anathema Psykana, and the Divisio Assassinorum for Warhammer: The Horus Heresy, serving as a complete guide to army building, unit selection, and gameplay rules. It provides everything needed to field some of the Imperium’s most elite forces.

Custodians are the finest warriors of the Imperium, equipped from the Emperor’s own arsenals. This book explores their dual role as protectors and relentless aggressors through deep lore and comprehensive rules.

On the Battlefield

Liber Imperium enables you to command small but exceptionally powerful forces where every unit matters. With unique rules, advanced reactions, and specialised detachments, you can build armies that combine precision, resilience, and devastating combat power.

The book allows you to field Custodes, Sisters of Silence, and Assassins, offering flexibility in army composition and tactics.

Product Information

This is a 120-page hardback book containing rules, lore, and army options for Warhammer: The Horus Heresy.

Contents

• In-depth background on the Talons of the Emperor:
  • Legio Custodes
  • Anathema Psykana
  • Divisio Assassinorum
• Rules and unit profiles for Legio Custodes
• Army building guidelines and wargear options
• 5 Detachments:
  • Moritoi Convocation
  • Hykanatoi Convocation
  • Tharanatoi Convocation
  • Ephoroi Convocation
  • Kataphractoi Convocation
• Army lists for:
  • Legio Custodes
  • Anathema Psykana
  • Divisio Assassinorum
• Advanced Reactions and Gambits

Requirements

• Warhammer: The Horus Heresy – Age of Darkness Rulebook required