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Demonsomnia
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.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-04 · quoted reviews as of 2026-05-13.
“This game is nothing but a scam. I remember the first trailer and screenshots for the game showing a very different style choice to what we have now. It has been over a year now since the last steam news update. Please save your money and look for something else instead.”
— a player, Steam review · 1 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 2026-09-19.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-08-12. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Rebuilding Demonsomnia: How Far Have We Come?
Hello everyone! It’s been about three months since our last announcement. So, what's been happening during this time? We're excited to share that we've laid the foundation for the "New Version" of our
Demonsomnia: A Fresh Start for 2025!
Hello! With this approximately 2GB patch, we’ve fixed several bugs that were reported to us. Additionally, we’ve resolved the persistent network connection issue. But what about the more significant o
Our Plan and Patch Notes 1.4.4
Patch Notes 1.4.4 Here is an image from our mode, which we haven’t released yet but plan to publish with a major update and marketing campaign once it’s perfected: https://i.imgur.com/b8JSIsM.png Our
Demo Activation Announcement!
When we last activated our demo, it became one of the most played demos in the world. Since the day we deactivated it, we have never made it available again. But, I think the time has come. As of now,
Patch Notes 1.4.3
Hello, we're here with an important announcement! We've added a new mode to the game called Escape Mode. Since Armed Mode was, to be honest, a bad and boring mode, we've decided to remove it for now a
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-13.
| Genres | Action, Early Access |
| Player tags | Early Access · Horror · Online Co-Op · Multiplayer · Co-op · Psychological Horror · Exploration · Supernatural · First-Person · Sci-fi · Investigation · Demons (SteamSpy community voting) |
| Features | Single-player · Multi-player · Co-op · Online Co-op · Steam Achievements · Steam Cloud · Family Sharing |
| Languages | English, French, Italian, German, Spanish - Spain, Simplified Chinese, Japanese, Korean, Russian, Turkish, Ukrainian, Arabic |
| Achievements | 2 |
| Official site | https://woziva.com/ |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10, 64 Bit Processor: Intel Core i5-4430 / AMD FX-6300 Memory: 8 GB RAM Graphics: NVIDIA GTX 970 / AMD Radeon R9 390 DirectX: Version 11 Network: Broadband Internet connection Storage: 20 GB available space