EternalCircuitBoard — cheap CD keys, compare prices
Is it worth buying?
The price is above its low (was €4.41), but within a reasonable range Notify me on a drop
About the game
You drop chips onto a 6×6 grid and wire up circuits that produce energy. Finished circuits remain in place, add energy each turn, and can feed into the next circuit you build. You have a limited number of turns to link circuits and hit the score goal. HS Games developed and published it in 2026.
Best price today
€5.19
· · check “Region” on the seller’s page
Steam · Official store · Steam
Global key · check “Region” on the seller’s page
You pay Steam directly · same price as on their site
Notify me when it drops below €4.67
- On Steam
- €5.19
- lowest in tracked period
- €4.413 Nov
The cheapest EternalCircuitBoard key right now costs €5.19 at Steam. (Prices as of )
Offers 1 · PC · from €5.19
Prices as of
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
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Lowest official since we started tracking (Nov 2026)
€4.41
Nov 2026
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
System requirements
| Minimum | |
|---|---|
| OS | Windows 10 64-bit (version 21H1) or later |
| Processor | x64 processor with SSE2 support |
| Memory | 4 GB RAM |
| Graphics | DirectX 11 compatible graphics card |
| DirectX | Version 11 |
| Storage | 1 GB available space |
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About this game — FAQ
Can EternalCircuitBoard be played single-player?
Yes, EternalCircuitBoard is a single-player game.
Does EternalCircuitBoard support a controller/gamepad?
Yes, EternalCircuitBoard has full controller support.
What languages does EternalCircuitBoard support?
EternalCircuitBoard is available in: English, Simplified Chinese, Traditional Chinese, Japanese, Korean.
Does EternalCircuitBoard use Steam Cloud saves?
Yes, EternalCircuitBoard uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a EternalCircuitBoard key?
The cheapest EternalCircuitBoard key is currently sold by Steam for €5.19. The lowest price we have ever recorded for this game: €4.41.
How much does EternalCircuitBoard cost?
EternalCircuitBoard currently costs from €5.19 — 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.