Grey Goo: Definitive Edition

Grey Goo: Definitive Edition

Grey Goo: Definitive Edition

Grey Goo: Definitive Edition

About the game

FIGHT THE CHAOS. OR HARNESS ITS POWER. Out of the ashes of war, a tentative truce emerges between the Humans, Beta and the Goo—but peace doesn’t last long. Ecosystem Nine finds itself thrust into turmoil once again with the arrival of a destructive, alien life form known as the Shroud.

Grey Goo is a real-time strategy (RTS) game that combines classic strategy mechanics and a balanced combat system with an emphasis on large-scale decision-making. It puts you at the center of a tactical struggle for survival—and ultimately, control of Ecosystem 9.

Take on the single-player campaign to command three factions: the Humans, masters of defensive architecture; the Beta, a proud, versatile alien race; and the Goo, an enigmatic, highly mobile life form. Or compete with any of the four multiplayer factions—including the disruptive, unpredictable Shroud.


  • Fight—or play as—the Shroud, a brand-new, multiplayer faction.
  • Command new units: the Humans’ Valiant, the Beta’s Squall and the Goo’s Siphon.
  • Explore an additional story arc with “Grey Goo: Emergence,” and discover the Goo’s true intentions.
  • Take on the Shroud in Mission 16, “Herald of Silence."
  • Sharpen your battlefield tactics in the single-player campaign, or join the fray on Steam.
  • Join the fray on Steam and find opponents through skill-based matchmaking.
  • Change the rules of the battlefield with unit-altering tech upgrades.
  • Deliver devastating blows by constructing game-ending Epic units.
  • Take the battle offline via Local Area Network play.
  • Enhance your competitive edge with Replay Mode and Observer Mode.

Bonus content

Grey Goo Definitive Edition includes:

  • Grey Goo
  • Grey Goo - Emergency Campaign
  • Grey Goo - Soundtrack

System Requirements


  • OS: 32-bit Windows 7
  • Storage: 15 GB
  • Processor: 3.5 GHz Intel Core i3 Dual Core
  • Memory: 4 GB
  • Graphics: 1024 MB DirectX 11 (GeForce GTX 460 / AMD Radeon HD 5870)
  • DirectX: 11


  • OS: 64-bit Windows 7
  • Storage: 15 GB
  • Processor: 3 GHz Intel Core i5 Quad Core
  • Memory: 8 GB
  • Graphics: 1024 MB Direct3D 11 (GeForce GTX 570 / AMD Radeon HD 7870)
  • DirectX: 11