About Lost Prototype

Lost Prototype is an Indie, and Free to Play game developed by Unsorted Games. On 6/20/2025, it was released on the Steam Store by Unsorted Games.

It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.

According to Steam’s category system, Lost Prototype supports the following features:

• Single-player
• Family Sharing

From the Steam community, Lost Prototype has been tagged with the following user tags:

• Free to Play
• Walking Simulator
• First-Person
• Linear
• Horror
• Indie
• Adventure
• Singleplayer

Media & Sceenshots

Watch the featured video for Lost Prototype and see the latest screenshots from the Steam Store.

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Soures & References

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Lost Prototype data has been sourced from:

• Valve Corporation. (2025, December 22). Lost Prototype on Steam. Steam Store.
• Valve Corporation. (2025, December 22). Lost Prototype. Steam Community Hub.