Fossilfuel — cheap CD keys, compare prices
Is it worth buying?
- Reviews are mixed. (Steam 70%)
- The price is at or near its all-time low — a good time to buy.
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
This horror-tinged action shooter throws players into confrontations with prehistoric monsters and augmented soldiers, set in an adrenaline-charged cyberpunk world that branches into multiple endings. DangerousBob Studio LLC both developed and published the game in 2021.
Best price today
€3.22
all-time low: official €3.22 · keyshop €15.20 near low
The cheapest Fossilfuel key right now costs €3.22 at Steam — the best of 3 compared offers. The lowest price we have recorded for this game: €3.22.
The average low over the past 4 months was €3.49.
Prices as of
Steam best price Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Fossilfuel prices by store 3
| Store | Type | Price |
|---|---|---|
| Steam | Official store | €3.22 |
| Kinguin | Marketplace | €15.20 |
| K4G | Marketplace | €23.15 |
Lowest — official stores
€3.22
Aug 2026
Lowest — keyshops
€15.20
Aug 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €3.22 | €15.20 |
| Sept 2026 | €3.22 | €15.20 |
| Aug 2026 | €3.22 | €15.20 |
| Jul 2026 | €4.30 | €16.00 |
Lowest in-stock price per month from our price history; the current month is the low so far.
How to activate your key
- Steam key — open the Steam client → Games → Activate a Product on Steam → enter the key. Stores with this activation: Steam, Kinguin, K4G
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All-time low so far: €3.22
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 7 64-bit or later | Windows 10 64-bit or later |
| Processor | Quad-core Intel or AMD 2.5 GHz or faster | Intel core i7-9700k or AMD 3700x or better |
| Memory | 4 GB RAM | 4 GB RAM |
| Graphics | NVIDIA GeForce 470 GTX or AMD Radeon 6870 or better | NVIDIA GTX 1080 ti or AMD Radeon 5700 XT or better |
| DirectX | Version 12 | Version 12 |
| Storage | 15 GB available space | 15 GB available space |
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About this game — FAQ
Can Fossilfuel be played single-player?
Yes, Fossilfuel is a single-player game.
Does Fossilfuel support a controller/gamepad?
Yes, Fossilfuel has full controller support.
What languages does Fossilfuel support?
Fossilfuel is available in: English.
FAQ
Where is the cheapest place to buy a Fossilfuel key?
The cheapest Fossilfuel key is currently sold by Steam for €3.22. That is the best of 3 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €3.22.
How much does Fossilfuel cost?
Fossilfuel currently costs from €3.22 — the cheapest offer across the stores we track.
Is Steam an official store or a keyshop?
Steam is an official store — keys come directly from the publisher or an authorized distributor.
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. So before paying, check the seller's buyer protection.
Which key region should I pick?
Global activates everywhere. Regional keys (Europe, North America, RU-CIS) only work on accounts from that region — use the Region filter to match your account.
What is an activation platform?
The service where the key activates — Steam, GOG, Epic or the publisher's platform. A key for one platform won't work on another, hence the separate filter.
What's the difference between editions?
Standard is the base game; Deluxe usually adds an expansion or bonus content. The edition filter shows exactly that variant, with no mixed prices.