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Q: Why is the Steam Key of Grey Goo safer than the account format?

The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Grey Goo to your game library. The account format requires more complicated steps and is more prone to errors during activation.

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Grey Goo Steam Key: compare prices from 18 offers (August 2026)

A Grey Goo Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €3.28 (-88%) at Gamivo, 88% below the €27.99 Steam price · 13 verified stores, 18 offers in stock · Updated 16min ago.

Steam Key

Cheapest

€3.86 €3.28 -88% Save €25 vs Steam View deal

GCDKGamivo

-15%

Copied!

Steam Key

Official store

€27.99 View deal

No code available

See 18 keys from €3.28

Historical prices

Medium price

Current minimum price

Grey Goo prices: 12-month price history →

Official stores are authorized distributors, and while their prices may be higher than Key stores, their reliability is 100%.

“Choose it if you don’t mind the price difference”

Key stores are resellers and marketplaces, which is why they are usually cheaper than official stores. We only show the best ones, so you can rest assured. Plus, we offer our guarantee against any issues.

“Choose it if you’re looking for a great discount”

Editions Special Definitive Standard

Format Steam Key

Global EU US UK

Official stores 1 stores Hide Accounts

Resellers

No payment fees With payment fees Basic price Fees incl.

Promoted store

Difmark Digital Keys 4.1 (14.2k)

Coupon

Gocdkeys -16%

Copied!

€4.85 €4.07

Store Difmark Digital Keys

Region Global

Product type Steam Key

Edition Standard

Fees +€0.34

Gamivo
Kinguin
HRKGame
K4G
Eneba
Driffle
G2A
Gameboost
Gaming Dragons
Instant Gaming
Cdkeys Com

Gamivo 3.8 (49.7k)

Subscription from 2.01€/month

€3.86 €3.01 How to get this priceHow to get

Store Gamivo

Region Global

Product type Steam Key

Edition Special

Fees +€0.54

Kinguin 4.6 (120.4k)

Subscription from 2.99€/month

€3.66 €3.29 How to get this priceHow to get

Store Kinguin

Region Global

Product type Steam Key

Edition Definitive

HRKGame 4.2 (29.7k)

€3.89 €3.42

Product type Steam Key

Edition Standard

Fees +€0.94

Gamivo 3.8 (49.7k)

Subscription from 2.01€/month

€4.07 €3.13 How to get this priceHow to get

Store Gamivo

Region Global

Product type Steam Key

Edition Standard

Fees +€0.57

Kinguin 4.6 (120.4k)

Subscription from 2.99€/month

€3.88 €3.49 How to get this priceHow to get

Store Kinguin

Region Global

Product type Steam Key

Edition Standard

Fees +€0.43

Kinguin 4.6 (120.4k)

Subscription from 2.99€/month

€3.97 €3.57 How to get this priceHow to get

Store Kinguin

Region Europe

Product type Steam Key

Edition Definitive

K4G 4.3 (17.6k)

€4.29 €3.69

Product type Steam Key

Edition Definitive

Eneba 4.4 (312.9k)

€4.15 €3.74 How to get this priceHow to get

Store Eneba

Region Global

Product type Steam Key

Edition Definitive

Eneba 4.4 (312.9k)

€4.30 €3.87 How to get this priceHow to get

Store Eneba

Region Global

Product type Steam Key

Edition Standard

Fees +€0.33

Driffle 4.4 (9.2k)

Subscription from 4.99€/month

€4.83 €4.35

Product type Steam Key

Edition Definitive

K4G 4.3 (17.6k)

€5.53 €4.76

Product type Steam Key

G2A 4.0 (346.2k)

€5.82 €4.37 How to get this priceHow to get

Store G2A

Region Global

Product type Steam Key

Edition Standard

Fees +€0.02

Gameboost 4.4 (15.1k)

€6.97 €6.06

Product type Steam Key

Edition Definitive

Fees +€0.46

Gaming Dragons 2.3 (203)

No code available

€7.27

Store Gaming Dragons

Region Global

Product type Steam Key

Edition Standard

Fees +€3.64

Instant Gaming 4.7 (833.8k)

No code available

€11.39

Store Instant Gaming

Region Global

Product type Steam Key

Edition Standard

Fees +€0.23

Cdkeys Com 4.8 (224.4k)

Product type Steam Key

Edition Definitive

Fees -

Official stores

Steam

Steam 1.8 (3.7k)

Product type Steam Key

Edition Standard

Fees -

About Grey Goo

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.

How much does Grey Goo for PC cost right now?

Grey Goo for PC starts at €3.28 at Gamivo, a Steam key, which is 88% under the €27.99 it costs on the official store.

That €3.28 already includes the GCDKGamivo coupon, so apply it at checkout or the store will show you a higher price.

That price is for the Special edition. The plain standard edition starts at €3.42 at HRKGame.

With 18 offers across 13 stores there is enough competition for the price to move, so the gap between the cheapest and the rest is worth checking before you buy.

That puts it 6% under its average of €3.49 since 2017, so today is a better entry point than most days of its life.

Is it worth buying the Steam Key for Grey Goo now or waiting?

That €3.42 key is expensive for what it usually costs.

Those €3.42 are 177% above what it usually costs, measured on the store price.
10 stores sell the Steam Key at the same time, and with that much competition the price moves almost daily.
Across the 919 days we have tracked it, it has only been pricier than today on 0 days. The lowest it has ever cost is €1.05.

If you do not need it today, waiting pays off: we have seen it at €1.05 and right now you would pay €2.83 more. We will tell you the day it drops.

Worked out from 1,891 daily records of the Steam Key for Grey Goo across 12 stores. See the full price history.

The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.

Can you activate Grey Goo in US?

16 of the 18 offers work on US — the Global ones plus the ones issued for your own region.

Is Grey Goo worth it?

28 outlets reviewed it and it averages 79 out of 100, with 69% recommending it.

Why is there such an expensive Grey Goo offer?

One listing is worth ignoring: the Steam key that Steam has at €27.99 is more than 8 times the cheapest offer and is not what this game costs. The number to work from is €3.42 at HRKGame.

This product is a download code or cd key game for Grey Goo, which is a game of real-time strategy (RTS) science fiction, where you have control of the 3 races are disputed resources of the universe. Huge armies of robots and mechs, resource control strategies based on our choices, all with a truly impressive graphic section. Once we have the cd key to the Grey Goo, the game can be downloaded from the Steam platform, which means you'll receive a code or cd key of Grey Goo in your email that you must turn in the library of Steam games to your account. Prior to this, from Gocdkeys we offer a price comparison for the cd key of Grey Goo in the best stores cd keys and key digital game. All shops listed on the comparative price forGrey Goo have been checked and verified by our team and our users. In each of the shops you'll see reviews and ratings on them. Delivery times of Grey Goo cd key and versions of the game and languages are specified in each of the shops ..

Most common FAQs when buying Grey Goo for PC in digital format:

It is a key that will allow you to download the game Grey Goo on your PC from official download platforms.

As of 23/08/2026, in United States, the best price we have found in our selection of online stores that include the key for Grey Goo on PC is €3.28.

The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Grey Goo to your game library. The account format requires more complicated steps and is more prone to errors during activation.

The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought Grey Goo , and they will provide a new key. You can also contact us, and we’ll help you out.

Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.

If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.

At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.

In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Need more help? Use our FAQs.

Gocdkeys - Transparency and credibility

At GOCDKEYS we display real prices from 49 verified stores. Some links may be affiliate links, which help us keep the service running at no extra cost to users. Prices and conditions are always exactly the same as those offered by the store. All stores go through our own store verification methodology, so you can buy with complete confidence.

If you have doubts before buying, we explain why CD keys are legal and break down the most common myths and facts about digital games, so you can make your decision with clear and up-to-date information.

More than 4.5M users in 14 years have trusted us to find the best deals — Trustpilot 4.1/5 ★
We compare 49 verified stores where we find the best deals for gamers
24/7 support to help you with any issues in your purchases
We track prices every 2 hours and sort by final cost - Last update: 2026-08-23 14:06:58

What do our users think of Grey Goo for PC Digital?

4.8/5 (4 Comments)

frityz

2015-05-24 12:54:23

Love this game. Reminds me of the old- school RTS from my youth.

Cort

2015-04-20 09:34:18

Very good game. I recommend

mobin70

2015-04-06 20:21:30

dont like these type of games not recomended

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Grey Goo

Is it worth it?

Critics Rating

Player Rating

Strong

Mixed 2,599 reviews on Steam

view →

4.8/5 4 ratings

What the press says

TotalBiscuit, The Cynical Brit

100

SelectButton

Grey Goo is a crowning achievement to the RTS genre, and a must-have for fans of strategy games. The narrative is excellent with stunning cinematics,... Read more

GameGrin

You may not get as much time out of it as you would with the likes of Red Alert 2, but for the time you're... Read more

Marooners' Rock

Grey Goo is a new spin on classic RTS. Without taking anything essential away they added in new ways to play, and new strategies to... Read more

New Game Network

Despite some frustrating missions and problematic Goo faction, this is one of the strongest traditional RTS games to have released in some time and will... Read more

Ars Technica

Grey Goo is definitely a throwback, albeit one with some compelling innovations. Those who remember the heyday of the RTS genre should get a kick... Read more