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OPEN DOOR
A scientific experiment in which no one survives, in a first-person survival horror game made by one developer In the role of a random person who is trapped in an experiment, try to get out and find out what is happening in this abandoned place.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-28.
“I got it cheap when bundled with pathogen x. It's not really the type of game I would play often, I prefer more faster action games but it killed a few hours and ran ok minus the usual unreal engine jank. Easy to 100%, terrible AI or at least AI sounding main character, luckily…”
— a player, Steam review · 3 hrs played“puzzlenya bikin pusing wkwkw”
— a player, Steam review · 6 hrs playedAchievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-28.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Open the door to the nightmare at 80% off!
Welcome to a world where the creepiest and most inexplicable events lurk behind every door. Face nightmares that will make you doubt reality. Your survival depends only on your courage and responsiven
Over 10,000 copies have been sold!
Thank you so much for your support! I used all the money I earned to develop and create other games. I already have a roadmap for the games that I will produce. The release of Pathogen X is waiting fo
Release of the demo version!
You can try Pathogen X demo right now, it will be available for a limited time Do not forget to add the game to the wishlist, a good discount will be waiting for you on the day of release! -> Link to
DEMO is Now Available!!!
Announcement of the release of the demo version in steam Release date 04.04.2024 Do not miss the opportunity to try out the game one of the first, the demo version will be available in a short period
The release of a new game!
Share your opinion and comments about the game It is still in development and will be supplemented with content! To everyone who liked it, please add it to the wish list) I am waiting for your ratings
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-28.
| Genres | Action, Casual, Indie |
| Player tags | Thriller · Psychological Horror · Atmospheric · First-Person · Puzzle · Dark · Hidden Object · Exploration · Singleplayer · Action · Casual · Indie (SteamSpy community voting) |
| Features | Single-player · Steam Achievements · Family Sharing |
| Languages | English * , Russian, French, Italian, German, Spanish - Spain, Portuguese - Portugal, Traditional Chinese, Korean, Japanese, Polish, Turkish * |
| Achievements | 12 |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10 Processor: Intel Core i5-7400 Memory: 16 GB RAM Graphics: Nvidia geforce 1060 6gb DirectX: Version 11 Storage: 12 GB available space