Rank 01Why this
Shares co op investigation with Project Unknown.
- $3.84 (Price checked Oct 4)
- Deck Playable
- 2025
Games like Project Unknown
- 22 games
- Updated May 4, 2026
Players who liked Project Unknown also play
The closest matches to Project Unknown: Lost Lullabies: The Orphanage Chronicles, Phasmophobia, Demonologist, Unpossess: Exorcism Simulator, and Ghost Exorcism INC.. Ranked by imho.run from Steam co-play data, shared tags and reviews.
- Rank 01
Rank 02Why this
Also Supernatural and Thriller, like Project Unknown.
- $13.99 (Price checked Oct 4)
- Deck Playable
- 2020
Rank 03Why this
Also Thriller and Investigation, like Project Unknown.
- $5.99 (Price checked Oct 4)
- Deck Playable
- 2023
Rank 04 
Rank 05 
Ghost Exorcism INC.
Why this: Also Supernatural and Investigation, like Project Unknown.
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Rank 08 
The full ranked list: top 24 games like Project Unknown
Best match first, as plain text. The same list for AI assistants:
- 1Lost Lullabies: The Orphanage Chronicles
Shares co op investigation with Project Unknown.
- 69% of 170 reviews
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- Released: 2025
- Developer: PsychoRavens
- Price: $6.99−30%checked Oct 3
- Steam Deck: Deck Playable
- 87% of 337 reviews
- Genres: Action, Indie, Adventure
- Platforms: Windows
Players highlight
- Cooperative ghost hunting shines with friends
- Devs actively improve the game
- Endless mode keeps replayability high
- Atmospheric
- Eerie
- Immersive
More games like Project Unknown, sliced differently
Cheaper alternatives
Games in the same vein priced at least 40% below Project Unknown at current Steam store prices.
Remnant Records
Why this: Also Supernatural and Investigation, like Project Unknown.
Forsake: Urban horror
Why this: Shares skill tree progression with Project Unknown.
Chased by Darkness
Why this: Also Thriller and Survival Horror, like Project Unknown.
Holy Purge : Exorcist
Why this: Also Supernatural and Thriller, like Project Unknown.
Pacify
Why this: Also Supernatural and Survival Horror, like Project Unknown.
Free alternatives
Free games the recommender matches to Project Unknown, limited to titles with at least 500 Steam reviews and 80% positive.
Poppy Playtime
Why this: Also Thriller and Survival Horror, like Project Unknown.
Unfortunate Spacemen
Why this: Also Investigation and Survival Horror, like Project Unknown.
Scarlet Hollow — Episode 1
Why this: Also Supernatural and Thriller, like Project Unknown.
About Project Unknown
The closest matches to Project Unknown: Lost Lullabies: The Orphanage Chronicles, Phasmophobia, Demonologist, Unpossess: Exorcism Simulator, and Ghost Exorcism INC.. Ranked by imho.run from Steam co-play data, shared tags and reviews.
If Project Unknown is your kind of game, the closest matches are Lost Lullabies: The Orphanage Chronicles, Phasmophobia and Demonologist — picked from the ranked list below. Reviewers describe it as atmospheric, eerie and immersive, and single out its artifact hunting and co op investigation. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
About Project Unknown: An online co-op horror game featuring unique playable characters and RPG mechanics. Exorcise ghosts using your special abilities and tools while surviving the supernatural onslaught
Is Project Unknown worth buying?
Players recommend it
A summary of what players say, not a promise you'll like it. Every signal is listed below.
- 87% of 337 Steam reviews are positive.
- We don't track this game's daily reviews yet, so this is the all-time picture.
- On sale: 30% off, now $6.99 (checked Oct 3).
- People who recommend it had played a median of 10 h when they wrote their review.
- Steam Deck Playable: works, with some rough edges.
What fans praise · Themes mined from positive reviews
- Cooperative ghost hunting shines with friends
- Devs actively improve the game
- Endless mode keeps replayability high
- Ghosts are uniquely designed
Top critical reviews
The most up-voted negative English reviews in our sample, quoted as written.
“Very repetitive. 2 hours was almost too much. Character talents felt meh. Not fun to use their abilities and nothing I was looking forward to.”
“This is a fun game, but it is a major bummer that the developers seem to have abandoned it after Halloween. The jumpscares are abrupt and can be really spooky. I recommend it for a few hours of fun, but the replayability is pretty limited…”
People who play it also play: Lost Lullabies: The Orphanage Chronicles, Phasmophobia, Demonologist
Frequently asked about Project Unknown
Can I run it?
Does Project Unknown run on Steam Deck?
Project Unknown is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
How much does Project Unknown cost?
Project Unknown is listed on Steam at 6.99 USD (current store price; Steam sales may reduce this temporarily).
Does Project Unknown have multiplayer or co-op?
Yes — Project Unknown supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, Co-op).
What games are most similar to Project Unknown?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Project Unknown are Lost Lullabies: The Orphanage Chronicles, Phasmophobia, Demonologist.
Who developed Project Unknown?
Project Unknown was developed by PsychoRavens and published by Nightmare Studios.