Signal Foundry — 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
Signal Foundry is a relaxed idle simulation about breathing life back into a long-dormant refinery out in deep space. Players power up the scanning rig, mine ore, and build the machinery needed to process it, eventually letting drones handle the routine work. The game offers a pair of prestige layers, 30 unlockable achievements, an original score spanning 19 tracks, and no microtransactions of any kind. Justin Edwards developed and published the game, released in 2026.
Did you know?
Unusual for the idle genre, which is often heavy on microtransactions, Signal Foundry pointedly has none at all.
Best price today
€3.07
all-time low: official €3.07 near low
The cheapest Signal Foundry key right now costs €3.07 at Steam. The lowest price we have recorded for this game: €3.07.
The average low over the past 4 months was €4.84.
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.
Lowest — official stores
€3.07
Oct 2026
Price history
last 77 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €3.07 | — |
| Sept 2026 | €6.15 | — |
| Aug 2026 | €6.15 | — |
| Jul 2026 | €3.99 | — |
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
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All-time low so far: €3.07
System requirements
| Minimum | |
|---|---|
| OS | Windows 10 64-bit |
| Processor | Any x64 processor (2015 or newer) |
| Memory | 4096 MB RAM |
| Graphics | Any GPU from 2015 or newer; integrated graphics OK |
| Storage | 300 MB available space |
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About this game — FAQ
Can Signal Foundry be played single-player?
Yes, Signal Foundry is a single-player game.
What languages does Signal Foundry support?
Signal Foundry is available in: English.
FAQ
Where is the cheapest place to buy a Signal Foundry key?
The cheapest Signal Foundry key is currently sold by Steam for €3.07. The lowest price we have ever recorded for this game: €3.07.
How much does Signal Foundry cost?
Signal Foundry currently costs from €3.07 — 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.