Games like Unnatural Investigations
Below are 8 hand-picked alternatives to Unnatural Investigations for fans of action, indie, ranked by imho.run's hybrid recommender. Each pick is scored on three signals: collaborative filtering across millions of Steam libraries (which players who logged hours in Unnatural Investigations also play), content overlap on genres, categories, and storefront tags, and review-mined "vibe" embeddings that catch tonal similarity even when the genre label differs. No login required — these picks work anchor-only.
About Unnatural Investigations: 4 player online coop game, eliminate enemies, find special items & clues, summon the boss, and destroy it
Players who liked Unnatural Investigations also play
Ranked by collaborative filtering across millions of Steam libraries plus content overlap on genres, tags, and developers.
- 1
Entities
Top pick for Unnatural Investigations fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Unnatural Investigations.
Dive into horror in Entities. Solo or up to 4-player matches offer dynamic puzzles, relentless entities, and extraction shooter mechanics. Investigate, unlock paths, and survive in dangerous zones as a private operator. Master skill and terror. Are you ready to confront the unknown?
- 2
Demonsomnia
Second-strongest match for Unnatural Investigations fans by collaborative filtering across millions of Steam libraries. Shares Action with Unnatural Investigations.
Demonsomnia is a CO-OP multiplayer bodycam horror game focused on the impact of nuclear reactions. Radiation has spread everywhere, so put on your gas mask. Your goal is to activate the nuclear reactor device and escape without being caught by mutants.
- 3
Painkiller
Third-strongest match for Unnatural Investigations fans by collaborative filtering across millions of Steam libraries. Shares Action with Unnatural Investigations.
The classic Painkiller series is back! Battle through Purgatory in fast-paced co-op action, wielding infernal weapons against relentless demonic hordes. Condemned for your sins, the Voice of the Creator offers you a chance at redemption. Will you seize it or be lost to darkness?
- 4
Left 4 Dead 2
Ranked #4 for Unnatural Investigations fans by collaborative filtering across millions of Steam libraries. Shares Action with Unnatural Investigations.
Set in the zombie apocalypse, Left 4 Dead 2 is a co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.
- 5
GTFO
Ranked #5 for Unnatural Investigations fans by collaborative filtering across millions of Steam libraries. Shares Action with Unnatural Investigations.
GTFO is a hardcore cooperative horror shooter that throws you from gripping suspense to explosive action in a heartbeat. Stealth, strategy, and teamwork are necessary to survive in your deadly, underground prison. Work together or die together.
- 6
Tom Clancy’s Rainbow Six® Extraction
Ranked #6 for Unnatural Investigations fans by collaborative filtering across millions of Steam libraries. Shares Action with Unnatural Investigations.
Tom Clancy's Rainbow Six® Extraction is a tactical, co-op, PvE first-person shooter where you and your squad face an evolving alien threat. Teamwork, tactics, and flawless execution are key to your survival.
- 7
Unreal Tournament 3
Ranked #7 for Unnatural Investigations fans by collaborative filtering across millions of Steam libraries. Shares Action with Unnatural Investigations.
Now includes the free Titan Pack expansion! The Titan Pack gives players a substantial amount of enhanced features and new content, including many original environments, new gametypes, the namesake Titan mutator, powerful deployables and weapons, new characters, and the Stealthbender.
- 8
Tannenberg
Ranked #8 for Unnatural Investigations fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Unnatural Investigations.
Experience authentic First World War action with 64 player battles of maneuver on the Eastern Front. Grab your rifle, ready your sabre and keep your gas mask close as you prepare to play a part in one of the most significant conflicts in history!
Narrow it down
Head-to-head comparisons
Frequently asked about Unnatural Investigations
- How much does Unnatural Investigations cost?
- Unnatural Investigations is listed on Steam at 1.99 USD (current store price; Steam sales may reduce this temporarily).
- Does Unnatural Investigations have multiplayer or co-op?
- Yes — Unnatural Investigations supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, Co-op).
- What games are most similar to Unnatural Investigations?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Unnatural Investigations are Entities, Demonsomnia, Painkiller.
- Who developed Unnatural Investigations?
- Unnatural Investigations was developed by Dimension Unknown Studio.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Unnatural Investigations.
For library-aware picks tuned to your specific taste, sign in with Steam on the home page.