Demonsomnia
Developed by Serhat Akgul · Published by Demonsomnia Team
At a glance
Overview
An action game by Serhat Akgul, published by Demonsomnia Team — single-player, multi-player, co-op, online co-op. It is in Early Access.
Steam’s own one-line description: “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.” — developer/publisher text via the Steam store page.
Reception & community
Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.
Features & modes
Derived from the gameplay modes and feature categories Steam lists for Demonsomnia.
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | Yes |
| Co-op | Yes |
| Online co-op | Yes |
| PvP | No |
| Cross-platform multiplayer | No |
| Full controller support | No |
| Partial controller support | No |
| Steam Cloud saves | Yes |
| Steam Achievements | Yes |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
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
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10 - 64 bit
- Processor: Intel Core i7-6700K or AMD Ryzen 5 2600X
- Memory: 32 GB RAM
- Graphics: NVIDIA RTX 2060 / AMD Radeon RX 5700
- DirectX: Version 12
- Network: Broadband Internet connection
- Storage: 20 GB available space
Supported languages (12)
Demonsomnia FAQ
Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.
What kind of game is Demonsomnia?
Steam classifies Demonsomnia as a Action game, developed by Serhat Akgul. 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.
How much does Demonsomnia cost?
As of June 2026, Steam lists Demonsomnia at $13.99. Prices and regional pricing change — check the Steam page for the current figure.
Is Demonsomnia single-player or multiplayer?
Steam lists these modes for Demonsomnia: Single-player, Multi-player, Co-op, Online Co-op. It supports both solo and multiplayer.
Is Demonsomnia on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists Demonsomnia for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is Demonsomnia out yet?
Yes — Steam lists a release date of Aug 13, 2024.
What platforms is Demonsomnia on?
Demonsomnia is listed for Windows on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.
Is Demonsomnia single-player or multiplayer?
Steam lists these modes: Single-player, Multi-player, Co-op, Online Co-op.
How much does Demonsomnia cost?
Steam lists it at $13.99.
Does Demonsomnia have achievements?
Yes — Steam lists 2 achievements for Demonsomnia.
Who made Demonsomnia?
Demonsomnia is developed by Serhat Akgul and published by Demonsomnia Team.
Where to get Demonsomnia
We don't sell games or track prices — this links to the official Steam store page.
View on Steam →Listing details from Valve's public Steam store data · official site. Not affiliated with Valve/Steam, Demonsomnia Team.