Terminal Lucidity

Psychological horror puzzle adventure about deciphering an underground computer network

Happy Accident Studios · Released Jan 23, 2026

Reviews: Very Positive; 96% of 106
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 8 months ago; Feb 6, 2026
Minimum PC: 0.3 GB RAM; Full requirements

What is Terminal Lucidity?

This free, single-player puzzle adventure follows a technician sent to maintain supercomputers in an underground concrete facility. You explore, run terminal commands, and work out how the machines' hidden rules interact to solve puzzles and uncover what is happening.

For you if...

+you enjoy testing patterns and keeping detailed notes

Not for you if...

−you prefer a relaxed difficulty over demanding logic puzzles

What players say

96% of 106 reviews are positive

Players praise how the puzzles build on earlier discoveries, along with the creepy atmosphere and story clues. Some dislike the lack of saving, and several report that a first playthrough takes much longer than advertised.

Screenshots and trailer

Terminal Lucidity system requirements

Minimum: 0.3 GB RAM.

As published by the developer.

Can my PC run Terminal Lucidity?

The published requirements do not name a graphics card we can compare.

Set up my PC →

Minimum

OS: Windows 8/10/11
Processor: Anatomically Complete Human Brain
Memory: 300 MB RAM

Does Terminal Lucidity have co-op or multiplayer?

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

Single-player

Does Terminal Lucidity 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: 4
Steam features: Family Sharing
Languages: Text only: English.

Does Terminal Lucidity 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