Games like CLAUSTRUM
If CLAUSTRUM is your kind of game, the closest matches are Back in the Swamp, how to kill a fly [ H2KAF ] and Dire Echo — picked from the ranked list below. 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.
Get personalized picks →About CLAUSTRUM: Claustrum is an atmospheric first-person exploration game set within an endless brutalist megastructure. Navigate dark industrial corridors, interact with forgotten machinery, and uncover the mystery of a dormant complex that was never meant to wake up.

Players who liked CLAUSTRUM also play
Steam players who put hours into CLAUSTRUM also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
Back in the Swamp
WHY THIS
Top pick for CLAUSTRUM fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with CLAUSTRUM.
A first-person point-and-click exploration adventure set in a mysterious post-apocalyptic swamp filled with giant insects and abandoned robots. Observe your surroundings, find the right objects, and progress through the ruins in this 3–4 hour atmospheric journey.
how to kill a fly [ H2KAF ]
WHY THIS
Second-strongest match for CLAUSTRUM fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with CLAUSTRUM.
You are a corporate flesh object with no way to speak on your own trying to pose as a human by mimicking what other people say. Serve the corporation that owns you, complete your assignment.
Dire Echo
WHY THIS
Third-strongest match for CLAUSTRUM fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with CLAUSTRUM.
Dire Echo is a psychological horror walking simulator that immerses players in the eerie and oppressive atmosphere of abandoned deep space.
THE SUSPENSE
WHY THIS
Ranked #4 for CLAUSTRUM fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with CLAUSTRUM.
How might life inside Artificial Intelligence be like? Is it possible to stop this painful routine? This life even real or not? Try your luck...
Subterrain: Mines of Titan
WHY THIS
Ranked #5 for CLAUSTRUM fans by collaborative filtering across millions of Steam libraries. Shares Indie with CLAUSTRUM.
Awaken from an abandoned stasis pod and discover a doomed mining camp on Titan in an uncompromising turn-based survival RPG. Survive the evolving horrors that lurk below and craft equipment, research new gear, fight against overwhelming odds, or even discover your true fate.
Barbotine
WHY THIS
Ranked #6 for CLAUSTRUM fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with CLAUSTRUM.
An atmospheric horror micro-game that touches on topics of anxiety, isolation, body image and obsessive habits with a surreal PSX aesthetic.
The Eternal Castle [REMASTERED]
WHY THIS
Ranked #7 for CLAUSTRUM fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with CLAUSTRUM.
The Eternal Castle [REMASTERED] is a remake of the original "ETERNAL CASTLE" from 1987, with additional game mechanics, sophisticated sound design, polished 2-bit CGA animated graphics, and modernized game design.
I'm counting to 6...
WHY THIS
Ranked #8 for CLAUSTRUM fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with CLAUSTRUM.
Turning onto an old road, the main character gets into an accident due to thick fog. Now he's trying to find someone who can help him. Forced to enter an old house, the main character finds himself trapped, from which it is not so easy to get out.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Doki Doki Literature Club!
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with CLAUSTRUM.
The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.
Life is Strange - Episode 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Adventure with CLAUSTRUM.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
Ultimate Custom Night
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with CLAUSTRUM.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
ENA: Dream BBQ
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with CLAUSTRUM.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
The Murder of Sonic the Hedgehog
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with CLAUSTRUM.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
Indigo Park: Chapter 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with CLAUSTRUM.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
The Looker
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with CLAUSTRUM.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
Sheepy: A Short Adventure
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with CLAUSTRUM.
A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.
Narrow it down
Head-to-head comparisons
Frequently asked about CLAUSTRUM
- What games are most similar to CLAUSTRUM?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside CLAUSTRUM are Back in the Swamp, how to kill a fly [ H2KAF ], Dire Echo.
- Who developed CLAUSTRUM?
- CLAUSTRUM was developed by HelDen Games.
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 CLAUSTRUM.
For library-aware picks tuned to your specific taste, sign in with Steam on the home page.

![how to kill a fly [ H2KAF ] — Steam game cover](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4566700/f6686a890c92d7293302075d1e448d9739bc8bbb/header.jpg?t=1787252521)




![The Eternal Castle [REMASTERED] — Steam game cover](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/963450/header.jpg?t=1667004057)








