PLUG IN — cheap CD keys, compare prices
Is it worth buying?
- The price is above its low (was €3.73), but within a reasonable range. Notify me on a drop →
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
PLUG IN is a sokoban-style puzzle game that's easy to pick up but demanding to master, built around observing and running experiments on subjects held in containment. Players carefully steer strange anomalies through elaborate test chambers, making sure each one reaches its intended path and satisfies the observation goals. 9900 Studio made and published the game, which came out in 2026.
Best price today
€4.15
lowest in tracked period: official €3.73 (+11%)
The cheapest PLUG IN key right now costs €4.15 at Steam. The lowest price we have recorded for this game: €3.73.
The average low over the past 2 months was €3.94.
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
€3.73
Sept 2026
Price history
last 29 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €4.15 | — |
| Sept 2026 | €3.73 | — |
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: €3.73
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | windows10/11 | windows10/11 |
| Processor | intel i3 12100/AMD Ryzen 1700 | intel i5 10400/AMD Ryzen 2700 |
| Memory | 2 GB RAM | 2 GB RAM |
| Graphics | GTX750ti | GTX960 |
| Storage | 650 MB available space | 650 MB available space |
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About this game — FAQ
Can PLUG IN be played single-player?
Yes, PLUG IN is a single-player game.
What languages does PLUG IN support?
PLUG IN is available in: English, French, German, Spanish - Spain, Russian, Turkish, Japanese, Polish and 4 more.
FAQ
Where is the cheapest place to buy a PLUG IN key?
The cheapest PLUG IN key is currently sold by Steam for €4.15. The lowest price we have ever recorded for this game: €3.73.
How much does PLUG IN cost?
PLUG IN currently costs from €4.15 — 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.