The Space Hulk Genestealer Rules Missions Background for Warhammer 40K is a vintage first edition rulebook from Games Workshop, featuring the iconic Genestealers, Grey Knights, and Space Marines armies. This supplement provides detailed information and mission objectives for players to immerse themselves in the intense and strategic gameplay of Space Hulk. With a focus on the United Kingdom, this English-language book complements the Space Hulk game with new rules, scenarios, and lore, making it a valuable addition to any Warhammer 40K collection.