MysteryOS
Games like MysteryOS

Find the Steam hidden gems

single-players with secrets you find without a guideor

Games like MysteryOS

A free-to-play puzzle-survival game about decoding an alien OS interface, though its rough execution and bugs cut sessions short.

Crossroad OS
A short, mildly spooky adventure-puzzle game inside a decaying OS, featuring item collection and strange creatures.
2023-12-08
- First person
- Puzzle
- Adventure

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Games like MysteryOS | IndieDex

MysteryOS
Games like MysteryOS

Find the Steam hidden gems

single-players with secrets you find without a guideor

Edit search

Games like MysteryOS

A free-to-play puzzle-survival game about decoding an alien OS interface, though its rough execution and bugs cut sessions short.

Crossroad OS
A short, mildly spooky adventure-puzzle game inside a decaying OS, featuring item collection and strange creatures.
2023-12-08
- First person
- Puzzle
- Adventure

Text

ABI-DOS

A free single-player puzzle game about building circuits and automating data blocks via a fictional coding language, with a cryptic Admin storyline and a short, guide-dependent playtime.

2024-11-15

Strategy
Indie
Side view
Simulator

StarOS

A short, surreal single-player simulation where you explore a retro-styled simulated operating system.

2023-07-04

Bird view / Isometric
Indie
Side view
Simulator
Text
Mystery

Terminal Lucidity

A single-player puzzle adventure about deciphering hidden terminal languages in an underground facility, with a cryptic tone and roughly 14 hours of well-flowing challenges.

2026-01-23

First person
Puzzle
Adventure
Horror
Indie

Mainlining

A short, single-player cyberpunk hacking adventure played entirely from a simulated desktop, with a point-and-click investigation narrative.

2017-01-26

Adventure
Indie
Simulator
Mystery

Aliya's Awakening: DOGE 2042

A brief, rough AI-generated cyberpunk adventure with interactive storytelling and a dystopian setting.

2025-04-20

Adventure
Indie

⟨Unknown_Terminal⟩

A compact retro terminal mystery where you explore a simulated IBM PS/2 and decode corrupted logs to uncover who lurks behind the blinking prompt.

2026-02-23

Indie
Simulator

Dingir OS

A ~2-hour single-player horror game that puts you inside a simulated OS to browse forbidden websites and investigate lethal files.

2025-11-27

Adventure
Horror
Indie
Simulator
Point-and-click

Sato Killing Time Chat.exe

A compact single-player chat horror about a browser chat with Mina that erodes reality, offering an intriguing but translation-heavy mystery in roughly two hours.

2026-03-12

Puzzle
Adventure
Horror
Indie
Simulator
Text
Point-and-click
Romance

Hearing Voices

A short, eerie horror adventure where you decipher scrambled audio tapes and solve word-order puzzles, with consequences for mistakes and a roughly one-hour playtime.

2026-06-08

Puzzle
Adventure
Horror
Indie

Remote Position

A compact horror adventure about obeying mysterious remote-supervisor tasks to uncover a father's secret, mixing puzzles and quick-time action sequences, though reviewers currently note rough edges and bugs.

2025-10-22

Action
First person
Science fiction
Puzzle
Thriller
Adventure
Horror
Indie
Mystery
Point-and-click

MindEscape

A free-to-play single-player 3D escape room puzzle game with AI personality assessment, though reviewers report unplayable bugs and very short sessions.

2025-11-29

First person
Puzzle
Strategy
Indie
Simulator

Crossroad OS