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Grey Goo

Fight for control of a frontier world. Gather resources, build your base, and command your forces in battle. Survive long enough to unleash your ultimate weapon - THE EPIC.

Steam Page
Developer
Petroglyph, Six Foot
Publisher
Six Foot, Grey Box
Release
January 23, 2015
11 years and 194 days ago
Steam Reviews
Mixed4,324 reviews67.9%

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Updated: Jul 14, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 14, 2026Publisher scaleThe operating scale of the game's publisher.
A separate publisher is listed without a proven bounded regional or service-only role.
Search Google: Is Grey Goo self-published or published by Six Foot and Grey Box?Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Grey Goo and Six Foot and Grey Box funded?FundingThe known source of funding behind the game.
Search Google: Who controls the creative direction and IP for Grey Goo and Petroglyph and Six Foot?Creative controlWho appears to retain creative control of the game.
Updated: Jul 14, 2026Release statusWhether and how the game has been released.
The title released with a separate publisher relationship.

Media

16 items

About the Game

FIGHT THE CHAOS. OR HARNESS ITS POWER.


Drawn to a remote world, intelligent lifeforms fight for control of its resources. Here they must each answer the primal choice of life...extinction or evolution?

Grey Goo is a real-time strategy (RTS) game that combines classic strategy mechanics and a balanced combat system with an emphasis on base-building. 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.

Features


  • 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.
  • Use the Map Editor to create your own battlefields and share them with the community via Steam Workshop.
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