Warhammer 40K: Rogue Trader - Void Shadows

It gives faces and names to far more of your giant ship’s crew, it finally lets you explore it, it adds a great subplot and companion, and it even adds the best music track in the game– the bumping tech choir sung in the Astropathic Chapel. On the box, it says Void Shadows adds an extra 15 hours of content, but if you’ve beaten the game already, it’s more like an extra playthrough. And for everyone else, you’d be cheating yourself by not buying it from the get-go.