Project Unknown — cheap CD keys, compare prices
Is it worth buying?
- Reviews are solid. (Steam 83%)
- 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
Playable online with friends, this is a cooperative horror title featuring a roster of distinct characters and RPG-inflected mechanics. Players rely on special abilities and tools to banish ghosts while trying to survive a supernatural onslaught. PsychoRavens developed the game, Nightmare Studios published it, and it came out in 2025.
Did you know?
On Steam it holds an 83% positive rating from 924 reviews, placing it in the Very Positive category.
Best price today
€6.82
all-time low: official €6.82 near low
The cheapest Project Unknown key right now costs €6.82 at Steam. The lowest price we have recorded for this game: €6.82.
The average low over the past 4 months was €8.29.
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
€6.82
Sept 2026
Price history
last 71 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €6.82 | — |
| Sept 2026 | €6.82 | — |
| Aug 2026 | €9.75 | — |
| Jul 2026 | €9.75 | — |
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: €6.82
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | WINDOWS® 7, 8, 8.1, 10 (64-BIT Required) | WINDOWS® 7, 8, 8.1, 10 (64-BIT Required) |
| Processor | Intel® Core™ i5-3470 or AMD Ryzen™ 3 1200 | Intel® Core™ i7-3770 or AMD FX™-9590 or better |
| Memory | 8 GB RAM | 16 GB RAM |
| Graphics | NVIDIA® GeForce® GTX 760 2GB / AMD Radeon R9 280 3GB | NVIDIA® GeForce® GTX 1060 or AMD Radeon™ RX 480 with 3GB Video RAM |
| DirectX | Version 11 | Version 11 |
| Storage | 9 GB available space | 9 GB available space |
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About this game — FAQ
Does Project Unknown have co-op?
Yes, Project Unknown supports online co-op.
Does Project Unknown have multiplayer?
Yes, Project Unknown has multiplayer.
Can Project Unknown be played single-player?
Yes, besides multiplayer modes, Project Unknown can also be played solo (single-player).
What languages does Project Unknown support?
Project Unknown is available in: English, French, Italian, German, Spanish - Spain, Japanese, Korean, Polish and 7 more.
FAQ
Where is the cheapest place to buy a Project Unknown key?
The cheapest Project Unknown key is currently sold by Steam for €6.82. The lowest price we have ever recorded for this game: €6.82.
How much does Project Unknown cost?
Project Unknown currently costs from €6.82 — 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.