Galaxy Adventures 3D
Join Mario Jr. on this galactic adventure liberating worlds from the evil LordUsury. A 3D adventure video game with a fun soundtrack and a welcoming environment. The game is 100% indie developed by a single person over 5 years.

Mixed · 5 reviews
60% positive (3 / 5)










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.
Released
August 21, 2026
Price
Platforms
Windows
Developer
Publisher
Last sync
September 25, 2026

You weren't supposed to end up here.
One moment everything was normal. The next, you find yourself trapped inside an endless maze of yellow walls, buzzing fluorescent lights, empty hallways, and places that shouldn't exist.
But you're not alone.
THE EXPANSION is a first-person psychological horror experience inspired by the unsettling atmosphere of the Backrooms. Explore strange environments, uncover new areas, and survive the entities hiding within them.
🚪 3 Levels to Explore
👁️ You're not alone.
👹 Terrifying Entities
📼 VHS Found-Footage Horror
🎧 Immersive Atmosphere & Jumpscares
Explore. Survive. Find a way out.

🟨 LEVEL 1 – THE BACKROOMS
🏊 LEVEL 2 – THE POOLROOMS
🔴 LEVEL 3 – MARS OUTPOST

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.