PCGame

CTHON

First-person horror roguelike with randomized mazes and cybernetic upgrades

Gravity Games · Released Mar 17, 2017

Action

Reviews
Mostly Positive
71% of 87
Recent reviews
Not enough recent
Players
0
daily peak, Oct 30, 2026
Steam Deck
Untested
Last update on Steam
4 years ago
Apr 12, 2022
Minimum PC
256 MB
2 GB RAM · 0.5 GB disk
Full requirements

What is CTHON?

CTHON is a single-player sci-fi shooter set on a colonized moon in the 24th century, where a mining colony has disturbed an evil entity. You choose from three characters, fight monsters across nine levels, search for secrets, and use alien technology to modify your body and weapons. Death ends your run.

For you if...

  • +you prefer slower exploration over fast, complex gunplay
  • +you enjoy claustrophobic corridors and science-fiction horror

Not for you if...

  • −you want handcrafted levels rather than randomized layouts
  • −you want to keep your progress after dying

What players say

71% of 87 reviews are positive

Players praise the sprite art, ambient soundtrack, and visible changes to upgraded weapons and equipment. Recurring complaints concern repetitive level layouts and inventory limits that restrict progression.

Screenshots and trailer

CTHON screenshot 1

CTHON system requirements

Minimum: 256 MB, 2 GB RAM, 0.5 GB of disk space.

As published by the developer.

Can my PC run CTHON?

Tell us your graphics card once and every game page will answer this for you.

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Minimum

OS
Windows XP / Vista / 7
Processor
2.5 GHz processor
Graphics
256 MB
Memory
2 GB RAM
Storage
500 MB available space
DirectX
Version 9.0c

Recommended

OS
Windows 7 / 10
Processor
2.7 GHz or faster processor
Graphics
1 GB
Memory
3 GB RAM
Storage
1 GB available space
DirectX
Version 9.0c

Does CTHON have co-op or multiplayer?

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

Does CTHON 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
Steam features
Family Sharing
Languages
Text only: English, French.

Does CTHON 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

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