Zone Mortalis battles are fought in tight, claustrophobic environments where tanks cannot operate and artillery support is absent. These engagements take place deep within hive cities, fortress complexes, and industrial labyrinths across countless worlds, where Loyalist and Traitor forces clash in brutal close-quarters warfare amid the wider devastation of Horus’ rebellion. Within these confined warzones, every corridor and chamber can decide the outcome of entire conflicts.

Combat in Close Quarters

This Journal Tactica supplement contains the Age of Darkness: Zone Mortalis Core Rules and the Clearance Protocol Mission Pack, enabling players to recreate the intense boarding actions and subterranean battles of the Horus Heresy. It introduces new ways to experience Warhammer: The Horus Heresy through focused, infantry-driven gameplay in restricted environments.

This 48-page softcover expansion includes:

• Zone Mortalis Battlefields: Rules covering the unique terrain of confined warzones, including corridors, chambers, doorways, and restricted movement spaces.
• Zone Mortalis Rules: Core and advanced rules for gameplay in enclosed environments, including reserves, reactions, and cogitator terminal interactions.
• Clearance Protocol Mission Pack: Six new missions featuring updated primary and secondary objectives, detachment rules, and battlefield maps.
• Additional Profiles: Five new unit profiles optimised for close-quarters combat, including Veteran Breacher Squads and Veteran Despoiler Squads (Legiones Astartes), Veletaris Raider Sections and Auxilia Combat Technician Sections (Solar Auxilia), and the Castellax Infernus Maniple (Mechanicum).

To use this supplement fully, you will also need the Warhammer: The Horus Heresy – Age of Darkness Rulebook, along with Liber Mechanicus, Liber Astartes, Liber Hereticus, and Liber Auxilia, each available separately.