A rules supplement for Warhammer: The Horus Heresy

Your guide to commanding the Emperor's Children, Iron Warriors, Night Lords, World Eaters, Death Guard, Thousand Sons, Sons of Horus, Word Bearers, and Alpha Legion in battle

Loaded with detailed background information about each of the Legions, their organisation, and history

Packed with Legion-specific rules to give your army its own feel and playstyle in games