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. Nine maps from the 41st millennium, each with their own missions and objectives. Alpha 8.67 features a new player model for the Chaos Dreadnaught class, created by contributor Clay_more and more marine voice acting from Bulwark and DortAsk.