
- BGG rank
- BGG #2,697
- BGG rating
- 8.0
Infinity N3: Core Book
- 2 players
- 90–120 min
- Complexity 3.9/5
- 2005

Expansion for Warhammer: The Horus Heresy – Legions Imperialis
2024
Rules assistance for Warhammer: The Horus Heresy – Legions Imperialis: The Devastation of Tallarn
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

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Answers come from the official rulebook, with the page to check.
Warhammer: The Horus Heresy – Legions Imperialis: The Devastation of Tallarn is an expansion for Warhammer: The Horus Heresy – Legions Imperialis released in 2024 for 2–6 players, 120 minutes per game, and ages 14 and up. Its main mechanics are Dice Rolling and Order Counters.
During the Horus Heresy the world of Tallarn, once a vibrant and verdant green world, was subject to utter devastation at the hands of the Iron Warriors. Virus Bombed to replace the atmosphere with a toxic fog of sickly brown rot, the world was soon engulfed in mass combat with entire detachments of tanks and titans striking out against each other. Soon the world would be littered with the corpses of blown out vehicles, as the virulent fog slowly choked out the world. In Legions Imperialis: The Devastation of Tallarn, players are able to not only recreate the Tallarn campaign with some awesome new campaign rules and missions, but are also able to expand their Legions Imperialis armies with new formations and detachments for both the Legiones Astartes and the Solar Auxilia. —description from the publisher
Warhammer: The Horus Heresy – Legions Imperialis: The Devastation of Tallarn supports 2–6 players according to the catalogue. This range comes from the publisher’s listed player count, so the game can be set up for any group size within it. Some setups, rules and scoring details may still vary by player count, so check your edition’s rulebook for the exact configuration.
The listed playing time for Warhammer: The Horus Heresy – Legions Imperialis: The Devastation of Tallarn is 120 minutes. This is the publisher’s estimate for a full game. The actual duration depends on the group, the player count and familiarity with the rules: first sessions usually run longer, while experienced groups often finish faster. Setup and teaching time are not included in this estimate.
The catalogue lists Warhammer: The Horus Heresy – Legions Imperialis: The Devastation of Tallarn for ages 14 and up. This is the publisher’s recommendation and reflects reading demands, rule complexity and small components rather than theme alone. Younger players can often join with help from an adult, so check the age guidance on your edition and consider your group’s experience with board games.
Warhammer: The Horus Heresy – Legions Imperialis: The Devastation of Tallarn belongs to these categories: Miniatures, Science Fiction, and Expansion for Base-game. Its main mechanics are Dice Rolling and Order Counters. Categories describe the theme and setting of a game, while mechanics describe what players actually do on their turns. Each mechanic links to a catalogue hub with similar games, which helps when you want something comparable.
The catalogue lists Warhammer: The Horus Heresy – Legions Imperialis: The Devastation of Tallarn as an expansion for Warhammer: The Horus Heresy – Legions Imperialis. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Warhammer: The Horus Heresy – Legions Imperialis to use it. Check that your edition of Warhammer: The Horus Heresy – Legions Imperialis is compatible, as some expansions were revised between editions.