keyg: the last prison

A puzzle-action game where keyboard keys become rooms to explore

Axel Sonic · Released Dec 13, 2018

Reviews: Very Positive; 85% of 124
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 29, 2026
Steam Deck: Untested
Last update on Steam: 2 years ago; Oct 8, 2024
Minimum PC: 128 MB; 1 GB RAM · 0.1 GB disk; Full requirements

What is keyg: the last prison?

In this single-player 2D puzzle-action game, you explore a strange world by pressing keys to move between rooms. Levels mix logic puzzles, arcade challenges, and enemies as you investigate the world's mysteries.

For you if...

+you like minimalist visuals and experimental game mechanics
+you enjoy stories with choices and multiple endings

Not for you if...

−you want puzzles without timed sequences or reflex tests

What players say

85% of 124 reviews are positive

Players praise the unusual keyboard controls and inventive puzzle ideas. Common complaints concern demanding timed sections and frustrating hard-mode challenges, with some players also reporting unreliable responses to rapid key sequences.

Screenshots and trailer

keyg: the last prison system requirements

Minimum: 128 MB, 1 GB RAM, 0.1 GB of disk space.

As published by the developer.

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Minimum

OS: Windows XP, 7, 8, 10
Processor: 1GHz+
Graphics: 128 MB
Memory: 1 GB RAM
Storage: 60 MB available space

Does keyg: the last prison have co-op or multiplayer?

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

Single-player

Does keyg: the last prison 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: 14
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, Russian, Spanish - Spain, Spanish - Latin America, Korean.

Does keyg: the last prison 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