Break the rules.
Build your own.
A collection of free sandbox and playground games for curious minds. Drop objects, test gravity, trigger chain reactions—and start over whenever you want.
Popular experiments
Physics Sandbox
Experiment with sand, liquids, lava, gases, and breakable solids in a pixel physics laboratory.
Draw the RailBall Physics
Build a working track with rails, springs, accelerators, and bumpers, then launch the ball.
Heart Box – Physics Puzzles
Guide a robot through experimental rooms using springs, fans, portals, platforms, and other physical objects.
Ragdoll Physics
Grab and move a floppy ragdoll through a strange, endlessly falling physics scene.
Draw a Skin for Mineblock
Create a blocky character skin, then dismantle, explode, and experiment with your finished build.
Scribble World: Physics Puzzle
Interact with physics-based elements to help Scribball collect keys, find coins, and escape each level.
Explore by category
Your world.
Your rules.
Sandbox games are digital toy boxes: there is no single correct move and no finish line you have to chase. The fun comes from forming a question—what happens if these objects collide, burn, freeze, or fall?—and testing it immediately.
Every game here opens in the browser and is organized around direct play. Pick an experiment, use the controls to create a scene, then reset the laboratory when your idea gets gloriously out of hand.