
- 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 Five – Tempest
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 Five – Tempest is an expansion for Warhammer 40,000 (Seventh Edition) released in 2016 for 2 players. It was designed by Alan Bligh and its main mechanics are Variable Player Powers and Dice Rolling.
Previously isolated from the brutal devastation of the Horus Heresy as it tore across the Imperium, Mankind’s civil war has now reached Ultramar. The Horus Heresy Book V: Tempest tells of the Word Bearers’ treacherous attack on the Ultramarines at the mustering world of Calth, and of the cataclysmic was that will soon engulf the entire system, pitching not only the Legions against each other, but also the massed ranks of the Imperial Army militia, and the towering god-machines of the Legio Titanicus. Lavishly illustrated in full colour, this leather bound 270 page book contains an extensive history of the Ultramarines, unit profiles, and an army list as well as rules for the Primarch of the XIIIth Legion, Roboute Guilliman. To represent their part in the conflict, the rules for the Word Bearers Legion have been updated and new units and characters provided for them. The new Imperialis Militia & Cults army list allows you to field the massed troops and war machines of a range of armies raised on a myriad of worlds, including planetary defence forces and twisted Warp cults, with rules to represent your army’s unique background and fighting style. Additional units for Legiones Astartes and Mechanicum armies are presented within Tempest, such as the Sokar Pattern Stormbird, the Domitar Class Battle-automata, and rules for using the gargantuan Mars Warlord Battle Titan. Bringing this wealth of source material and game rules together, the Betrayal at Calth campaign lets you refight the apocalyptic battles between the Traitors and the Loyalists, providing missions and rules so you can either fight for Calth, or bring about its utter destruction.
The Horus Heresy: Book Five – Tempest 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 Five – Tempest 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 Five – Tempest are: Alan Bligh. 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 Five – Tempest as an expansion for Warhammer 40,000 (Seventh 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 (Seventh Edition) to use it. Check that your edition of Warhammer 40,000 (Seventh Edition) is compatible, as some expansions were revised between editions.