This download is a self extracting installer including all you need to host and play Exterminatus - Rival Species 2. Two Species: Humans and Tyranids. Thirteen distinct classes, each with their own weapons. Nine maps from the 41st millennium, each with their own missions and objectives. Alpha 8.24 features improvements and bug fixes to the Dreadnaught class and tweaks to the map, class and wargear menus.