
- BGG rank
- BGG #88
- BGG rating
- 8.0
Star Wars: Imperial Assault
- 2–5 players
- 60–120 min
- Complexity 3.3/5
- 2014

Rules assistance for The Horus Heresy: Book Two – Massacre
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.
The Horus Heresy: Book Two – Massacre is an expansion for Warhammer 40,000 (Sixth Edition) released in 2013 for 2 players. It was designed by Alan Bligh and John French and its main mechanics are Variable Player Powers and Dice Rolling.
Word of Horus’ treachery escapes Isstvan III and now the Legions loyal to the Emperor mobilise to make Horus and those who follow account for their crimes. However the depth of the betrayal is yet to be revealed. The Horus Heresy Book Two: Massacre is lavishly illustrated in full colour and contains the dark deeds leading up to the terrible slaughter that unfolded during the Isstvan V Dropsite Massacre. Also detailed are the histories of the four legions that took part: The Iron Hands, Salamanders, Night Lords and Word Bearers, and an extensive campaign system so you can play out the battles on the tabletop. This book also contains additional entries for the Space Marine Legion Crusade Army list presented in The Horus Heresy Book One: Betrayal, as well as games rules for the Primarchs of the four newly described Legions, super-heavy vehicles and special characters featured in the story. The book itself is a full colour 286 page hardback, leather bound with embossed and silvered text.
The Horus Heresy: Book Two – Massacre supports 2 players according to the catalogue. This is the publisher’s listed player count, so the game is designed for exactly that number of participants. Variants for other group sizes, if any, are described in the rulebook of your edition, so check it before setting up a different configuration.
The Horus Heresy: Book Two – Massacre belongs to these categories: Wargame, Miniatures, and Science Fiction. Its main mechanics are Variable Player Powers and Dice Rolling. 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 credited designers of The Horus Heresy: Book Two – Massacre are: Alan Bligh and John French. These credits come from the published game data and name the people responsible for the game’s design, not its illustrators or publishers. Designer pages on MeepleRules collect other titles by the same designers, which helps when you enjoy a game and want to find similar ones.
The catalogue lists The Horus Heresy: Book Two – Massacre as an expansion for Warhammer 40,000 (Sixth Edition). Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Warhammer 40,000 (Sixth Edition) to use it. Check that your edition of Warhammer 40,000 (Sixth Edition) is compatible, as some expansions were revised between editions.