Alpha Prototype
Play the Prototype
Browser-based demos you can play right now. No download, no account required.
Choose a Demo
All demos run directly in your browser. No downloads required.
Build on a Platform
Master the basics of building and stacking
Collaborative Building
Build together in real-time
FPS Destroy
First-person destruction physics
Jet Destroy
Aerial destruction with physics
Marble Ball
Physics-based marble rolling
Gravity Maze
Browse a gallery of marble mazes and pick one to play — tilt on mobile, arrow keys on desktop.
Tilt or keyboard
Creator Spotlight — Made by the Community
Projects built and shared by people using the alpha. Click any tile to view it.