Lost Prototype

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Lost Prototype is a walking simulator in which you have to find your way out of a maze under construction. But be aware, you're not alone in this place. Something is following you and wants to erase all your progress.

Developer: Unsorted Games
Released: 20 Jun 2025
Price: Free to play
Platforms
Languages: English

Patch announcements

0 posts

Posts the developer tagged as patch notes

Last 90 days

How this is measured

Posts in a game's Steam news feed that Steam tags as patch notes.

News checked every 30 days

An announcement is not a build. Developers can ship updates without a post, or post about several updates at once.
Each check keeps the 10 most recent posts. Quiet games are checked as rarely as monthly, so a very busy feed can have gaps, and posts from before our first check may be missing.

Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology

Announcements

No posts seen yet.

From the game’s Steam news feed. An announcement is not a build: games can update without posting. Every public build we saw is on the Builds tab.