Oneiros
Developed by Coal Valley Games · Published by Coal Valley Games
At a glance
Overview
An action, adventure, casual game by Coal Valley Games, published by Coal Valley Games — single-player.
Steam’s own one-line description: “Will you be able to break the vicious circle? Can you regain control? Experience the surreal adventure filled with many puzzles and psychedelic visions.” — 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 Oneiros.
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | No |
| Co-op | No |
| Online co-op | No |
| PvP | No |
| Cross-platform multiplayer | No |
| Full controller support | Yes |
| 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 8/7/Vista
- Processor: Core 2 Duo E6700 (2.66 GHz)
- Memory: 4 GB RAM
- Graphics: nVidia GeForce 840M or Radeon R7 M260
- DirectX: Version 9.0c
- Storage: 3300 MB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: Core 2 Quad Q9650 (3 GHz) or better
- Memory: 8 GB RAM
- Graphics: NVidia GTX 970 or better
- DirectX: Version 11
- Storage: 3300 MB available space
Supported languages (4)
Oneiros 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 Oneiros?
Steam classifies Oneiros as a Action, Adventure, Casual, Indie game, developed by Coal Valley Games. Will you be able to break the vicious circle? Can you regain control? Experience the surreal adventure filled with many puzzles and psychedelic visions.
How much does Oneiros cost?
As of June 2026, Steam lists Oneiros at $4.99. Prices and regional pricing change — check the Steam page for the current figure.
Is Oneiros single-player or multiplayer?
Steam lists these modes for Oneiros: Single-player. It lists a single-player mode.
Is Oneiros on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists Oneiros for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is Oneiros out yet?
Yes — Steam lists a release date of Mar 27, 2020.
What platforms is Oneiros on?
Oneiros 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 Oneiros single-player or multiplayer?
Steam lists these modes: Single-player.
How much does Oneiros cost?
Steam lists it at $4.99.
Does Oneiros have achievements?
Yes — Steam lists 21 achievements for Oneiros.
Who made Oneiros?
Oneiros is developed by Coal Valley Games and published by Coal Valley Games.
Where to get Oneiros
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. Not affiliated with Valve/Steam, Coal Valley Games.