Build. Play. Test.
A mobile-web building sandbox — playable now in your browser. No download. No setup.
Play Now — Alpha Demos
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
Start building
Open a blank scene in your browser, or browse what the community has already built for inspiration.
Creator Spotlight — Made by the Community
Projects built and shared by people using the alpha. Click any tile to view it.
Who It's For
Players
Jump in, build fast, break stuff safely
No install, no downloads. Click and start building in seconds. Experiment freely in a safe, collaborative environment.
Creators
Build, share, and get credit for your work
Publish your builds for others to explore and remix. Two-player co-building works now — attribution and version history are coming next.
Educators & Facilitators
Zero install. Two-player co-build alpha. Session-friendly
Browser-based — no downloads, no accounts to manage in a session. Two-player real-time co-building works today; classroom permissions, named accounts, and session dashboards are planned and not yet shipped.
Coming next
What we're building after the current alpha. Vote and follow progress on the roadmap.
