The Horus Heresy is about to begin. The Galaxy's' Most powerful Warlords are placed on an unavoidable collision course as strength of body meets strength of will during the assault of Prospero.

The Prospero Campaign expansion allows the player to explore the events of The Horus Heresy on Prospero in more detail and play as the Warlords and Legions that fought there.

The Expansion includes 4 new Warlords for you to play. Each Warlord also comes with their custom Legion Dataslates.