I'm on Observation Duty 4 — cheap CD keys, compare prices
Is it worth buying?
Reviews are excellent (Steam 97%) · The price is at or near the lowest we've tracked — a good time to buy
Buy · Steam €3.99
About the game
I'm on Observation Duty 4 by Notovia is a horror game built around surveillance camera monitoring. Players scan live feeds for anomalies ranging from displaced furniture to intruders, filing reports to neutralize them. Surviving the entire night demands sharp attention and a reliable memory rather than reflexes.
Did you know?
The game applies a spot-the-difference puzzle mechanic to a horror surveillance context, an unusual genre mashup within the indie horror space.
Best price today
€3.99
· · 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 €3.59
- On Steam
- €3.99
- all-time low
- €3.992 Oct
- Average low, 5 mo.
- €4.79
The cheapest I'm on Observation Duty 4 key right now costs €3.99 at Steam. (Prices as of )
Offers 1 · PC · from €3.99
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 (Aug 2026)
€3.99
Oct 2026
Monthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €3.99 | — |
| Sept 2026 | €4.99 | — |
| Aug 2026 | €4.99 | — |
| Jul 2026 | €4.99 | — |
| Jun 2026 | €4.99 | — |
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
System requirements
| Minimum | |
|---|---|
| OS | 10 |
| Processor | Intel® Core™ i5-4690 CPU @ 3.50GHz × 4 or better |
| Memory | 4 GB RAM |
| Graphics | GTX 970 or better |
| Storage | 5 GB available space |
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About this game — FAQ
Can I'm on Observation Duty 4 be played single-player?
Yes, I'm on Observation Duty 4 is a single-player game.
What languages does I'm on Observation Duty 4 support?
I'm on Observation Duty 4 is available in: English.
FAQ
Where is the cheapest place to buy a I'm on Observation Duty 4 key?
The cheapest I'm on Observation Duty 4 key is currently sold by Steam for €3.99. The lowest price we have ever recorded for this game: €3.99.
How much does I'm on Observation Duty 4 cost?
I'm on Observation Duty 4 currently costs from €3.99 — 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.