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Grey Goo is a real-time strategy game set in the distant future on a planet called Ecosystem 9. The Beta have settled on Ecosystem 9 in a final attempt to save their civilization which was nearly exterminated in events set before the story of the game. After enjoying peace at first, their new home is now threatened by mysterious exploration robots known as Goo as well as a Human research vessel.

The three races each have their own strengths and weaknesses as well as their own set of units and buildings. Raw materials have to be gathered in the form of crystals. They are needed to construct a base so that you can recruit troops. For example the Humans' strength lies in defense and the Goo’s in mobility. The game offers a single-player story mode and a multiplayer mode for up to four players local or online.


There are no Windows user screenshots for this game.

There are 16 other screenshots from other versions of this game or official promotional screenshots.

Promo Images

Grey Goo Screenshot
Grey Goo Screenshot
Grey Goo Screenshot
Grey Goo Screenshot


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User Reviews

There are no reviews for this game.

Critic Reviews

Gaming Age Feb 26, 2015 A- 91 Mar 01, 2015 8.4 out of 10 84
Worth Playing Feb 19, 2015 8 out of 10 80
Shacknews Jan 06, 2015 8 out of 10 80
Hooked Gamers Jan 26, 2015 7.8 out of 10 78
GameStar (Germany) Jan 23, 2015 73 out of 100 73
PC Games (Germany) Jan 23, 2015 72 out of 100 72
We Got This Covered Jan 26, 2015 3.5 Stars3.5 Stars3.5 Stars3.5 Stars3.5 Stars 70
Destructoid Mar 29, 2015 7 out of 10 70
Quarter to Three Jan 26, 2015 2 Stars2 Stars2 Stars2 Stars2 Stars 40


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That's An Odd Title

The phrase "grey goo" has been used to describe out-of-control von Neumann nanomachines (microscopic self-replicating robots) since being coined by author Eric Drexler in his 1986 book Engines of Creation.

Related Web Sites

Flapco (45629) added Grey Goo (Windows) on Oct 31, 2015