Noosphere

First-person psychological horror with puzzles inside a crash survivor's mind

KOEX studio · Published by GrabTheGames, KOEX studio · Released Jul 23, 2021

As of Oct 28, 2026: -89% right now, $0.87

Reviews: Mixed; 61% of 98
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 4 years ago; Sep 27, 2022
Minimum PC: GeForce GTX 260; 8 GB RAM · 5 GB disk; Full requirements

What is Noosphere?

A single-player, first-person psychological horror game set in Vincent Martin's subconscious. You use a machine he builds to explore his mind and solve puzzles as he confronts an entity living inside him after a car accident.

For you if...

+you like surreal settings and a slower, exploration-focused pace

Not for you if...

−you want constant action rather than walking and problem-solving

What players say

61% of 98 reviews are positive

Players praise the unusual story and challenging puzzles. Common complaints concern unclear puzzle guidance and rough visuals.

Screenshots and trailer

Noosphere system requirements

Minimum: GeForce GTX 260, 8 GB RAM, 5 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 7 or higher
Processor: 1.7 GHz Dual Core CPU
Graphics: NVIDIA GeForce GTX 260, ATI Radeon 4870 HD, or equivalent card with at least 512 MB VRAM
Memory: 8 GB RAM
Storage: 5 GB available space

Does Noosphere have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Noosphere run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 8
Steam features: Family Sharing
Languages: Full audio: English. Text only: Simplified Chinese, German, Spanish - Spain, Czech, Korean, Polish, Portuguese - Portugal, Russian, Turkish, Portuguese - Brazil, Spanish - Latin America, Japanese, French, Italian.

Does Noosphere use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam