Grey Goo features three distinct factions - the Beta, Humans and Goo - each with its own truly distinctive style, strategies and “epic” units (very powerful, rare combatants that tower over the battlefield). The game features an immersive single-player campaign and competitive multiplayer options. Both single and multiplayer modes require diligent planning and intelligent decision making to capitalize on the sophisticated build tree system and multiple tech upgrades available. Built from the ground up based on real-world Defense Advanced Research Projects Agency (DARPA) concepts, Grey Goo’s adaptive AI studies and reacts to players’ actions, learning rather than running off scripts for a truly unique play experience and near-infinite replay value. In short, every game is different.