Grey Goo

Grey Goo is a real-time strategy game features three factions -- the Beta, Humans and Goo -- each with its own style, strategies and epic units (very powerful, rare combatants that tower over the battlefield). The game features a single-player campaign and competitive multiplayer options. Both single and multiplayer modes require planning and intelligent decision making to capitalize on the build tree system and multiple tech upgrades available.

Grey Goo is a strategy game available on PC.