Journal Tactica: The Battle of Tallarn, pt. 1

This is a pre-order items. Street Release date of 05/16/26.

Recreate one of the most devastating campaigns of the Horus Heresy with Warhammer: The Horus Heresy Journal Tactica: The Battle for Tallarn, Part One, a 48-page softcover supplement focused on the early stages of the war for Tallarn.

Before the war, Tallarn was a world of splendor and abundance. Then the Iron Warriors came, reducing it to a poisoned wasteland of ruin and ash. Yet even after such destruction, the people of Tallarn refused to surrender. With the aid of loyalist Legiones Astartes forces, they rose to defend their shattered home in one of the largest armored conflicts of the Horus Heresy.

This supplement explores the organization, tactics, and brutal conditions of the Tallarn campaign, with a particular focus on massed armored warfare. Inside, players will find expanded lore, new mission content, rules for fighting across Tallarn’s toxic surface, and additional options for Solar Auxilia and Legiones Astartes armies.

Perfect for players looking to expand their Horus Heresy games with armored clashes, battlefield hazards, and campaign-focused narrative play, The Battle for Tallarn, Part One adds new depth to one of the Heresy’s most infamous wars.

Inside the book:

• 48-page softcover supplement

• Detailed lore covering Tallarn before and after its devastation

• Background on the forces that fought across the ruined planet

• A Historical Mission for fighting The Road to Salvation

• Rules for Tallarn’s toxic terrain

• Rules for lost and abandoned cohorts of Battle-automata

• Updated rules for Solar Auxilia Rapier Sections

• Command Tank rules for Solar Auxilia and Legiones Astartes armies

• Vehicle High Command options

• Armoured Clash Mission pack for tank-focused battles

A copy of Warhammer: The Horus Heresy, Age of Darkness Rulebook and Liber Auxilia is required to make full use of this supplement.