COSMONAUT
Developed by Neon Chasm, LLC · Published by Neon Chasm, LLC
At a glance
Overview
An action, adventure, indie game by Neon Chasm, LLC, published by Neon Chasm, LLC — single-player.
Steam’s own one-line description: “Unravel the mystery surrounding the lost vessel Diogenes. A story-driven retro platformer with elements of horror. Use the zero-g suit to explore the eerie corridors of a derelict ship filled with unknown lifeforms and dark secrets.” — 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 COSMONAUT.
| 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 | No |
| Steam Achievements | No |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
Minimum
- OS *: Microsoft Windows XP / Vista / 7 / 8
- Processor: 1.2GHz processor
- Memory: 512 MB RAM
- Graphics: DirectX 8-compatible graphics card with at least 32MB of video memory
- DirectX: Version 9.0c
- Storage: 250 MB available space
- Additional Notes: Microsoft Xbox 360 Controller or Direct Input compatible controller
Recommended
- OS *: Microsoft Windows XP / Vista / 7 / 8
- Processor: 1.4GHz processor
- Memory: 1 GB RAM
- Graphics: DirectX 8-compatible graphics card with at least 32MB of video memory
- DirectX: Version 9.0c
- Storage: 250 MB available space
- Additional Notes: Microsoft Xbox 360 Controller or Direct Input compatible controller
Supported languages (1)
COSMONAUT 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 COSMONAUT?
Steam classifies COSMONAUT as a Action, Adventure, Indie game, developed by Neon Chasm, LLC. Unravel the mystery surrounding the lost vessel Diogenes. A story-driven retro platformer with elements of horror. Use the zero-g suit to explore the eerie corridors of a derelict ship filled with unknown lifeforms and dark secrets.
Is COSMONAUT free to play?
Yes — Steam lists COSMONAUT as Free to Play.
Is COSMONAUT single-player or multiplayer?
Steam lists these modes for COSMONAUT: Single-player. It lists a single-player mode.
Is COSMONAUT on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists COSMONAUT for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is COSMONAUT out yet?
Yes — Steam lists a release date of Jan 11, 2018.
What platforms is COSMONAUT on?
COSMONAUT 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 COSMONAUT single-player or multiplayer?
Steam lists these modes: Single-player.
How much does COSMONAUT cost?
It's free to play, per Steam.
Who made COSMONAUT?
COSMONAUT is developed by Neon Chasm, LLC and published by Neon Chasm, LLC.
Where to get COSMONAUT
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, Neon Chasm, LLC.