Thermonuclear — cheap CD keys, compare prices
Is it worth buying?
- 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
Thermonuclear is a quick arcade shooter channeling old Cold War action titles, built around nuclear-flavored battles and a chase for the highest score. Meridian4 published the game in 2021.
Best price today
€0.69
all-time low: official €0.69 · keyshop €1.12 near low
On Steam: €0.99 — you save 30% here
The cheapest Thermonuclear key right now costs €0.69 at Fanatical — the best of 5 compared offers. The lowest price we have recorded for this game: €0.69.
The average low over the past 4 months was €0.76.
Prices as of
Fanatical best price Official store
Steam Official store
Epic Official store
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
There are also offers of another kind (Gift) — show (1)
These are not ordinary keys. A gift is usually region-locked and arrives through someone else's account — if the region does not match, the game will not activate. An account means you get someone else's login: the game never becomes yours, and it breaks Steam's rules. A DLC or a bundle is not the base game. That is why none of them count towards the price at the top of the page.
Thermonuclear prices by store 5
| Store | Type | Price |
|---|---|---|
| Fanatical | Official store | €0.69 |
| Steam | Official store | €0.99 |
| Kinguin | Marketplace | €1.56 |
| G2A | Marketplace | €3.14 |
| Epic | Official store | €4.49 |
Lowest — official stores
€0.69
Aug 2026
Lowest — keyshops
€1.12
Sept 2026
Price history
last 89 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €0.69 | €1.56 |
| Sept 2026 | €0.69 | €1.12 |
| Aug 2026 | €0.69 | €1.57 |
| Jul 2026 | €0.99 | €1.68 |
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: Fanatical, Steam, Kinguin, G2A
- Epic key — open Epic Games Launcher → profile (top right) → Redeem Code → enter the key. Stores with this activation: Epic
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All-time low so far: €0.69
System requirements
| Minimum | |
|---|---|
| OS | Windows 7 |
| Processor | 1.7+ GHz or better |
| Memory | 1 GB RAM |
| Graphics | Intel HD 3000 or better. |
| Storage | 200 MB available space |
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About this game — FAQ
Can Thermonuclear be played single-player?
Yes, Thermonuclear is a single-player game.
What languages does Thermonuclear support?
Thermonuclear is available in: English, Russian.
FAQ
Where is the cheapest place to buy a Thermonuclear key?
The cheapest Thermonuclear key is currently sold by Fanatical for €0.69. That is the best of 5 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €0.69.
How much does Thermonuclear cost?
Thermonuclear currently costs from €0.69 — the cheapest offer across the stores we track. For comparison, the game costs €0.99 on Steam, so buying a key saves you about 30%.
Is Fanatical an official store or a keyshop?
Fanatical 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.