When was Lost Prototype released?

Lost Prototype was released on June 20, 2025.

What platforms is Lost Prototype available on?

Lost Prototype is available on PC (Microsoft Windows).

Where can I buy Lost Prototype?

Lost Prototype is available starting at 0 USD.

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Lost Prototype

Released: June 20, 2025

Genres

SimulatorIndie

Platforms

About

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.

Where to buy

Steam

Free to Play

Prices for US · Updated 8/29/2026

News

Rare Demon's Souls prototype shows off first-person perspective, unused enemies that could have rewritten Dark Souls history: "Like watching the mona lisa being painted" - GamesRadar+

GamesRadar+ · 8/7/2026