Buy Observation Protocol PC Key

★ ★ ★ ★ ★

Where to pre-order Observation Protocol? As of 13 Nov 2026 we have 1 offers across 1 stores, the cheapest being $2.59 at Steam. Pre-ordering gets you the game on release day, usually with the order bonuses, at a price you already know today. If day one is not the point for you, it is worth knowing that the price normally goes lower after launch.

Release: 25 Sep 2026
Pulsar One
Pulsar One
Metacritic:
tbd tbd
Keyshops
Unavailable
Buy in Official Store:
-35%
$2.59
Historical low
Buy in Keyshops:
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
Observation Protocol
Windows
4d ago
DRM:
Steam
Ends in 2 days
Steam
$3.99 $2.59
Ends in 2 days
Historical Low Deal
Historical low
-35%

About Observation Protocol

Observation Protocol - about the game

Observation Protocol is a first person psychological horror game about doing your job somewhere you shouldn't be.

You are stationed at an external monitoring post, watching camera feeds of a liminal office space - a facility that exists outside of normal space, scheduled for permanent closure by the organization that found it. Your task is simple: observe, identify, and document anomalies before the final containment procedure begins.

Then the power cuts.

With your monitoring equipment down, protocol demands you enter physically and continue your work from the inside. Armed with only a camera, you must move through the empty offices and corridors, photograph what doesn't belong, and get out before the organization completes closure - not locking a door, but severing the connection to this place entirely.

Document enough anomalies and the space stabilizes. Stay too long and it won't matter.

Get out in time.

A liminal horror experience. PSX aesthetic. First person. Singleplayer.

Age rating

Unavailable
Metacritic:
tbd tbd
Historical low
Price history from official stores
$2.59
Steam
4 days ago
Price history from keyshops
-
-
-

FAQ

8 questions

Before you start looking for a cheap Observation Protocol PC key, check the essentials. Developed by Pulsar One. Published by Pulsar One. PC released date: 25 Sep 2026. Genres: Indie, Adventure. Categories: Family Sharing, Single-player, Steam Achievements, Steam Cloud, Playable without Timed Input.

Q

Where to buy a cheap Observation Protocol Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Observation Protocol key for as low as $2.59. This deal is available at Steam and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest Observation Protocol price on PC. Check the Observation Protocol price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Observation Protocol Steam price is $2.59.

Our price tracker covers both official retailers and key marketplaces, so you can find Observation Protocol on sale even outside seasonal promotions. We currently detect 1 active offer from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Observation Protocol is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. Observation Protocol has an official page on the Steam Store. You can also buy a Observation Protocol Steam key from third-party sellers. Our price comparison currently includes 1 offer with Steam DRM. Pick one to ensure your Observation Protocol download happens on Valve's platform.

Not at this time. Valve marks Observation Protocol as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

According to our data Observation Protocol is not currently available on PC Game Pass, EA Play or Ubisoft+. We are still filling in the catalogues of these services, so it is worth confirming the status at the source before you decide. If you are buying, XD.deals will help you find the lowest price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Observation Protocol deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for Observation Protocol

1 Steam Steam Official
-35% $2.59

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