Grey Goo key prices
The cheapest Grey Goo key for EU buyers right now is €5.16 at Keydra (Steam, Global). The lowest price in an official store is €17.99 at Humble Store. We compare 3 stores that sell to buyers in the EU.
- 3 stores compared
- Checked 27 Oct, 19:27 UTC
- Price changed 27 Oct 2026
- Tracked since 10 Sep 2026
- Released
- 23 Jan, 2015
- Developer
- Petroglyph, Six Foot
- Publisher
- Six Foot, Grey Box
- Genres
- Strategy
- Players say
- Generally positive — 68% of 4,343 reviews on Steam
Prices for EU buyers
Standard edition
| Store | Activation | Region | Price | Discount | Checked | |
|---|---|---|---|---|---|---|
| KeydraKey resellerBest | Steam | ✓ Global | €5.16 | 27 Oct, 19:27 UTC | Go to store | |
| Humble StoreOfficial store | Steam | ✓ Germany store | €17.99 | 27 Oct, 12:41 UTC | Go to store | |
| SteamOfficial store | Steam | ✓ Germany store | €27.99 | 27 Oct, 19:27 UTC | Go to store |
Ultimate or Complete edition
| Store | Activation | Region | Price | Discount | Checked | |
|---|---|---|---|---|---|---|
| KinguinMarketplace | Steam | ✓ EU | €2.99 | 27 Oct, 19:14 UTC | Go to store | |
| KeydraKey reseller | Steam | ✓ EU | €3.44 | 27 Oct, 19:27 UTC | Go to store | |
| KeydraKey reseller | Steam | ✓ Global | €4.12 | 27 Oct, 19:27 UTC | Go to store | |
| FanaticalOfficial store | Steam | ✓ Germany store | €25.19 | −10% | 27 Oct, 19:17 UTC | Go to store |
| GamersGateKey reseller | Steam | ✓ Germany store | €27.99 | 27 Oct, 19:26 UTC | Go to store |
Marketplace and reseller prices are the lowest offer at the time of the check. On marketplaces the seller is a third party: check the seller's rating before buying.
Cheapest in pounds and dollars
The same game at stores that sell to buyers in the UK and the US, in the price they charge there. We do not convert: these are the amounts at the checkout. Most key marketplaces publish euro prices only, so pound and dollar prices come from official stores, authorised resellers and Kinguin, and can be higher than the EU price above. That is the reach of our data, not the state of the market.
Prices for UK buyers
| Store | Activation | Region | Price | Discount | Checked | |
|---|---|---|---|---|---|---|
| SteamOfficial storeBest | Steam | ✓ United Kingdom store | £22.99 | 27 Oct, 19:27 UTC | Go to store |
In GBP, the amount at the checkout: we do not convert. Only offers you can buy from the UK: that country's storefront, or a key whose region activates there. Standard edition, PC.
Prices for US buyers
| Store | Activation | Region | Price | Discount | Checked | |
|---|---|---|---|---|---|---|
| SteamOfficial storeBest | Steam | ✓ United States store | $29.99 | 27 Oct, 19:27 UTC | Go to store |
In USD, the amount at the checkout: we do not convert. Only offers you can buy from the US: that country's storefront, or a key whose region activates there. Standard edition, PC.
Offers are sorted by price. Links to stores may be affiliate links; they never change the order. How we make money.
Official prices in other countries
Steam and GOG set their own price for each country. Which one you pay depends on your account and location.
| Store | Country | Price | In euros |
|---|---|---|---|
| Steam | Norway | 200.00 NOK | ≈ €19.13 |
| Steam | Poland | 107.99 PLN | ≈ €24.52 |
| Steam | United States | $29.99 | ≈ €26.81 |
| Steam | United Kingdom | £22.99 | ≈ €27.43 |
| Steam | Switzerland | 29.00 CHF | ≈ €31.38 |
Price history
Daily lowest price for EU buyers, 48 days so far.
€5.1627 Oct 2026Point at the chart to read any day
Lowest price we have recorded for EU buyers: €3.88 at Kinguin on 21 Oct 2026.
Daily lowest price for UK buyers in GBP, 41 days so far.
£22.9927 Oct 2026Point at the chart to read any day
Daily lowest price for US buyers in USD, 41 days so far.
$29.9927 Oct 2026Point at the chart to read any day
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