Underplayed Gems

Lost Prototype (2025)

Lost Prototype cover
Developer
Unsorted Games
Platforms
Windows
Genres
Indie, Free To Play
Rating
4.5 of 5, 37 player ratings
Typical playtime
about 16 minutes
Where to get it
Steam
The 3D catalog: game boxes on wooden shelves, with the cat sitting at the counter next to its greeting.

The catalog in 3D

The same catalog has a room you can walk around in. The cat behind the counter is the AI Catbot, and they pick real games from it when you tell them what you feel like playing. Nothing is for sale, here or in there. Go in from here and this game is already out on the counter, with more like it waiting on the shelf next to it.

More games like this

How it feels

a brief, tense hide-and-seek experience in an unknown prototype with an unsettling atmosphere

shortatmospherictenseexperimentalfree to playindieeerie

What players say

Players report a very short horror experience (about 10-15 minutes) set in underground liminal hallways. They praise the unsettling atmosphere and trippy room effects but are split on the maze navigation: some find the lack of a map or direction frustrating while others enjoy the tension.

Screenshots

Lost Prototype screenshot 1Lost Prototype screenshot 2Lost Prototype screenshot 3Lost Prototype screenshot 4Lost Prototype screenshot 5Lost Prototype screenshot 6

More games like this

This page is from Underplayed Gems, a catalog of older and overlooked games. Not quite it? You can browse by platform and genre, or take this one into the 3D catalog and ask the Catbot for something closer.