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A Project Unknown Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €4.87 (no fees) at Steam · 3 verified stores, 4 offers in stock · Updated 04h 43min ago.

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See 1 key from €4.87 See 1 account from €6.02 See all 4 offers
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Project Unknown prices: 12-month price history →
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Difmark Digital Keys 4.1 (14.2k)
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Gocdkeys -16% copy Copied!
€9.06 €7.61
Store Difmark Digital Keys
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Region Global
Steam Gift
PromotediFeatured placement paid by the storeCheapest deal Best rated Product type Steam Gift
Standard
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Fees +€0.34
Recommended by GoCDKeysiStore recommended by GOCDKEYS for this game
Instant Gaming 4.7 (843.1k)
Steam Card Top up your Steam Wallet and buy it there. View cards
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Final prices with fees

Gameboost 4.4 (15.1k)
Steam Card Europe Europe · Steam Wallet credit to buy it on Steam Steam 5 €
€5.35
G2A 4.0 (352.8k)
No code available
€5.73 How to get this priceHow to get
Store G2A
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Region Global
Steam Account
Product type Steam Account
Standard
Edition Standard
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Fees +€0.29
G2A 4.0 (352.8k)
No code available
€7.55 How to get this priceHow to get
Store G2A
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Region Global
Steam Gift
Product type Steam Gift
Standard
Edition Standard
Description Icon
Fees +€0.29
Official stores
Steam 1.8 (3.7k)
No code available
€4.87
Store Steam
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -

About Project Unknown

As a gifted member of Paranormal Property Solutions (P.P.S.), you will tackle requests from troubled clients and exorcise the evil spirits haunting their discounted property. Exercise caution as you help clients sell their house ghost-free and secure your well-earned share!

FACE THE UNKNOWN

Navigate through the diverse range of supernatural phenomena that’s plummeting the price of the property while staying alive!

EXORCISE GHOSTS

Brace yourself for chilling encounters with many ghosts, each possessing a uniquely horrifying visual appearance. Learn more about their patterns and write down their behaviors in your trusty journal to learn how to survive. Finding the belongings where they store their curses is key to the exorcism, but so is making it out alive!

  • Darkness
    Apparitions do not like the light, so you can only have limited amount of lights open at any given time or else risk tripping the breaker. However, darkness in these haunted homes is not the same darkness you’re used to. Avoid it at all costs!

  • Miasma
    Fight back against an encroaching phenomena spreading in each client’s house and cleanse it. Let it get too out of hand, and fulfilling the request might be a lost cause!

USE YOUR SPECIAL ABILITY

Meet a diverse cast of characters with distinct traits, personalities, and abilities. Led by bravery, curiosity, and a relentless pursuit of truth, each member has their own unique ability to help them overcome the challenges that lay ahead!

  • Eirene is a high roller tarotist that uses her cards to impose a shared fate between her and her teammate

  • Zay is a quirky school teenager that regrets joining the team but his dog sure doesn’t

  • Luther is not only a pious priest, he is also a professional gamer.

  • Nyx is an occult enthusiast who’s got her hands on a true to life grimoire.

PURCHASE AND UTILIZE TOOLS

From ancient relics steeped in mystery to state-of-the-art ghost detection devices, equip yourself with these visually captivating tools that seamlessly blend functionality with aesthetic appeal.

Gain access to a range of specialized tools to aid you in fulfilling your client requests, such as the Ghost Magnifier, Ritual Bell, Curse Sensor and Flashlight Unit. Use all of them wisely to navigate through the threats and complete the exorcism.

EXPLORE HAUNTED LOCATIONS

Immerse yourself in meticulously designed and atmospheric environments. Discover haunted houses, eerie landscapes, and chilling locations that intensify the sense of fear and anticipation.
With limited lights, explore the dark atmosphere as you look for clues to complete your exorcism. Just make sure to be careful of what might be around the corner..

How much does Project Unknown for PC cost right now?

Project Unknown for PC starts at €4.87 (no fees) at Steam, a Steam key.

We have never recorded it cheaper than this.

Supply is thin — 4 offers from 3 stores — and thin supply keeps prices steady rather than falling.

Shared account !
€6.02
Cheapest, but the game is not yours
Steam Key
€4.87
Stays on your account for good
Steam Gift
€7.84
Pricier and more likely to fail

Is it worth buying the Steam Key for Project Unknown now or waiting?

That €4.87 (no fees) key is at one of its best prices.

  • Those €4.87 (no fees) are 44% below what it usually costs, measured on the store price.
  • Only 1 stores sell the Steam Key, and with that little competition the price barely moves.
  • Not counting today, only 14 days out of the 370 days on record were this cheap or cheaper; the lowest it has ever cost is €4.40.
At this price it is worth buying the Steam Key now: what you stand to gain by waiting is a few euros, and it is not guaranteed.

Worked out from 430 daily records of the Steam Key for Project Unknown across 4 stores. See the full price history.

The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.

Which Project Unknown format should you buy?

The cheapest offer is already a key for your own account: €4.87 (no fees) at Steam, so there is no reason to weigh up a shared account here.

The 2 Steam Gift offers are pricier than the key and leave more room for error, because they depend on the region and on Steam friendship.

Can you activate Project Unknown in US?

All 4 offers are Global, so the code redeems on any account no matter where it was created.

Most common FAQs when buying Project Unknown for PC in digital format:

It is a key that will allow you to download the game Project Unknown on your PC from official download platforms.
As of 12/11/2026, in United States, the best price we have found in our selection of online stores that include the key for Project Unknown on PC is €4.87 (no fees).
The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Project Unknown to your game library. The account format requires more complicated steps and is more prone to errors during activation.
The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought Project Unknown, and they will provide a new key. You can also contact us, and we’ll help you out.
Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.

If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.
At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.

In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Need more help? Use our FAQs.

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Project Unknown

Is it worth it?

Excellent overall reception
  • 81%Steam reviewsVery Positive · 796 reviews
Write a review → See it on Steam →

Can I run it?

Project Unknown system requirements & FPS metrics →

What the press says

US 1

oprainfall

50

In the end result, Project G isn’t the next big Shmup, but neither is it a failed Darius clone. It’s a quaint little game that... Read more

About the game

Release date
10 Oct 2025
Genre
Adventure Horror Psychological Horror
Modes
Multiplayer Online Co-Op Co-op
Setting
Mystery First-Person Thriller
Languages
English* French* Italian*

* languages with full audio

Requirements

Minimum:
  • OS *: WINDOWS® 7, 8, 8.1, 10 (64-BIT Required)
  • Intel® Core™ i5-3470 or AMD Ryzen™ 3 1200
  • 8 GB RAM
  • NVIDIA® GeForce® GTX 760 2GB / AMD Radeon R9 280 3GB
  • Version 11
  • 9 GB available space
Recommended:
  • OS *: WINDOWS® 7, 8, 8.1, 10 (64-BIT Required)
  • Intel® Core™ i7-3770 or AMD FX™-9590 or better
  • 16 GB RAM
  • NVIDIA® GeForce® GTX 1060 or AMD Radeon™ RX 480 with 3GB Video RAM
  • Version 11
  • 9 GB available space

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