Screenshots
Watch trailer on Steam ↗Submansion
Hrybochky studio · Published by Shreibikus
Positive — 94% positive (18 reviews) · 27 achievements
Last updated 3 Oct 2026
You are Snitcher who has broken into a mansion in search of a invaluable thing. Your guide on this journey will be Keykeeper, who has lost all the keys to the rooms in the mansion. Help her find the keys, and in return she will help you find what you are looking for.
£4.00
Lowest price we've ever recorded
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Price history
Adventure, Indie · 2025 · More under £5 games
Navigate the enigmatic rooms of Submansion as Snitcher and Keykeeper solve puzzles together. Experience an indie adventure where every key could unlock new challenges or secrets.
About this game
In Submansion, you will travel through ten rooms in search of lost keys and an invaluable thing. Your guide will be the Keykeeper. At first glance, a helpless lady who could not even cope with her main task - to keep the keys.
Complete the challenges in each room to find all the keys and learn more about Keykeeper, the mansion, its inhabitants, and yourself. Each room is a piece of the puzzle that comes together at the end of the story.
Game features:
- Visual novel with choices
- Multiple endings
- Point & click elements
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 or higher
- Processor: 2.0 Ghz 64-bit Intel-compatible
- Memory: 2 GB RAM
- Graphics: OpenGL 3.0 or DirectX 11
- DirectX: Version 11
- Storage: 1 GB available space
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
Latest news
Patch NotesOfficial
New Free DLC for Submansion
Hello, we've decided to release a short, free story DLC for the main game. You can play it either after the main story or before it.Read full article on Community Announcements (Міколог)Patch NotesOfficial
Bugfix
Fixed a bug with minigames in 7 and 9 chapters Other minor fixesRead full article on Community Announcements (Shreibikus)Patch NotesOfficial
Bugfix
Fixed a bug in 5 chapterFixed a bug with label in 7 chapterAdded History opening on mouse wheelRead full article on Community Announcements (Shreibikus)Patch NotesOfficial
Bugfix
Fixed a bug with inventory Fixed a bug with the clock in the first room Other minor fixesRead full article on Community Announcements (Shreibikus)AnnouncementsOfficial
Submansion – Now on Steam!
Submansion has officially launched and is now available for all players.Immerse yourself in a journey through the mansion, meet its inhabitants, and solve all the mysteries together with the Keykeeper.Read full article on Community Announcements (Shreibikus)
