500 Worlds: Titus

500 Worlds: Titus – The Battle for Unity Begins is a narrative expansion for Warhammer 40,000 that covers the opening moves of the war for the 500 Worlds, with a focus on the Vespator Front and the story of Captain Titus. It is presented as a slipcase containing three softback books and a booklet filled with background and rules content for Warhammer 40,000.