This download is a self extracting installer including all you need to host and play Exterminatus - Rival Species 2. Three Species: Imperium, Tyranids and Chaos. Eighteen distinct classes, each with their own weapons. Fourteen maps from the 41st millennium, each with their own missions and objectives. Alpha 9.11 features the return of an old EX map Spacehulk and more improvements to the scouting system along with bug fixes and balance adjustments.