
- BGG rank
- BGG #663
- BGG rating
- 8.0
Star Wars: X-Wing (Second Edition)
- 2 players
- 30–45 min
- Complexity 3.1/5
- 2018

Rules assistance for The Horus Heresy: Book One – Betrayal
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 One – Betrayal is an expansion for Warhammer 40,000 (Sixth Edition) released in 2012 for 2 players. It was designed by Alan Bligh and John French and its main mechanics are Variable Player Powers and Dice Rolling.
The Horus Heresy Book One: Betrayal is a supplement for Warhammer 40,000 dealing with war and battle in the dark age of the Horus Heresy. This book, lavishly illustrated in full colour, contains extensive background information on the Imperium as it stood at the end of the Great Crusade. Also detailed are the histories of the four Legions who took part: the Sons of Horus, Emperor's Children, World Eaters and Death Guard and an extensive campaign system. This book also contains a complete Space Marine Legion Crusade Army list as well as games rules for the Primarchs of the four Legions, super-heavy vehicles and special characters featured in the story. This is a leather bound full colour 290 page hardback book, leatherbound with embossed and silvered text.
The Horus Heresy: Book One – Betrayal 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 One – Betrayal 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 One – Betrayal 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 One – Betrayal 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.