
- BGG rank
- BGG #664
- BGG rating
- 7.9
Star Wars: Battle of Hoth
- 2–4 players
- 30 min
- Complexity 1.9/5
- 2025

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

What would you like to know?
Answers come from the official rulebook, with the page to check.
Warhammer: The Horus Heresy – Legions Imperialis: The Great Slaughter is an expansion for Warhammer: The Horus Heresy – Legions Imperialis released in 2024 for 2–4 players, 180–360 minutes per game, and ages 10 and up. Its main mechanics are Campaign / Battle Card Driven.
Contained within this book you will find a comprehensive history of the Second Battle for Nyrcon City and the origin of the Great Slaughter that would engulf the Garmon Cluster, detailing the Loyalist and Traitor forces that took part in that terrible conflict. As well as this complete narrative, this book also includes new detachments for both the Legiones Astartes and Solar Auxilia Army Lists, providing new weapons of war for the forces of the Horus Heresy. It also includes a complete Campaign system for linked battles. —description from the back of the book
Warhammer: The Horus Heresy – Legions Imperialis: The Great Slaughter supports 2–4 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 Great Slaughter is 180–360 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 Great Slaughter for ages 10 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 Great Slaughter belongs to these categories: Wargame, Science Fiction, and Expansion for Base-game. Its main mechanics are Campaign / Battle Card Driven. 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 Great Slaughter 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.