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The Expansion
A psychological first-person horror experience set in endless Backrooms. Explore abandoned corridors, uncover hidden secrets, evade mysterious entities, and survive a world where every turn leads deeper into the unknown.

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Features
Single-player
Family Sharing
Steam is learning about this game 
Requires 3rd-Party Account: Justin Masih 
Languages:
Interface Full Audio Subtitles
English ✔ ✔
This game is not yet available on Steam

Planned Release Date: 2026

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About This Game

There is no escape.

You awaken in a place that should not exist.

An endless maze of empty corridors, forgotten rooms, and impossible architecture stretches endlessly in every direction. Every step takes you deeper into the unknown, where silence becomes your greatest enemy and every shadow feels alive.

Explore mysterious environments, uncover hidden secrets, solve puzzles, and survive encounters with entities that stalk the endless halls.

The deeper you venture, the more reality begins to fall apart.

More levels, including the Poolrooms, are planned as free content updates after launch.

The Expansion is my first solo-developed game. I spent over a year creating it, learning, improving, and bringing my vision of the Backrooms to life. Every environment, mechanic, and detail was created with passion and care.

Thank you for supporting my journey as an independent game developer. Your support helps me continue improving The Expansion and creating even more content in the future.

(LEVEL 2 POOLROOMS TEASER)

System Requirements

    Minimum:
    • OS: Windows 11 64-bit
    • Processor: Intel Core i5-8400 or AMD Ryzen 5 2600
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GTX 1060 6GB or AMD RX 580
    • DirectX: Version 12
    • Storage: 3 GB available space
    • Sound Card: DirectX Compatible
    Recommended:
    • OS: Windows 11 64-bit
    • Processor: Intel Core i7-10700K oder AMD Ryzen 7 5800X
    • Memory: 16 GB RAM
    • Graphics: NVIDIA RTX 3060 or AMD RX 6700 XT
    • DirectX: Version 12
    • Storage: 3 GB available space
    • Sound Card: DirectX Compatible
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