Physics Sandbox

Draw a line, drop a box, and suddenly you're the god of a tiny sketch physics universe where every scribble has weight.

Physics Sandbox gives you a blank screen, two mouse buttons, and zero instructions besides the obvious. Left click draws whatever line or shape you're thinking of; right click erases your mistakes. I started with a simple ramp, dropped a ball, and watched it roll off the edge like it had somewhere to be. Then I stacked a few crates, drew a flimsy plank, and spent the next ten minutes trying to build a domino chain that didn't collapse before I finished. The physics feel appropriately janky in the best way—objects have weight, bounce, and friction, so even a slightly crooked line changes everything. What makes it stick is the lack of rules. There's no timer, no score, no level select. You're basically poking at a physics engine with a crayon. Drag the panels out of the way and the whole screen becomes your sketchbook. Need a pendulum? Draw a line, attach a ball, done. Want to see how many balls a badly drawn bucket can hold before it tips? Go for it. The game rewards curiosity over skill. I kept coming back just to see what dumb contraption I could half-build before it broke itself. Performance-wise it holds up on most browsers, even with a bunch of objects flying around. The minimize panels trick is handy—click and drag the little headers and they tuck away, giving you more drawing room. If you're on a trackpad, right-click might be tricky; some setups let you use two-finger tap or you can just draw over old stuff with white. Overall, it's a cozy, chaotic little physics toy that asks for nothing and gives back whatever mess you're willing to make.

left click to draw. right click to erase. you can drag and minimize the panels.

• Draw thick lines for solid platforms; thin lines bend under weight and make things bounce unpredictably. • Use right-click eraser to trim shapes before testing, not after—redrawing saves time. • Drag the top bar of any panel to minimize it and get a clean workspace. • Start with a simple ramp and ball to calibrate how gravity and friction feel in this build. • Stack crates with slightly overlapping edges to stop them from sliding apart too early. • Try building a pendulum: draw a line from the top, attach a ball, and swing it into stuff.

Q: Is Physics Sandbox free to play? A: Yes, it's completely free and runs in your browser—no hidden payments or premium features. Q: Do I need to download anything to play Physics Sandbox? A: No download needed. Just open the game page and start drawing with your mouse. Q: Can I play Physics Sandbox on mobile or tablet? A: The game works best with a mouse, but some touchscreens support drawing. Right-click erase may not work on tablets. Q: What are the basic controls in Physics Sandbox? A: Left click draws shapes and lines, right click erases them. Drag panel headers to minimize or move panels. Q: Does Physics Sandbox save my creations? A: No, the game doesn't save your drawings. Refresh the page and you'll start with a blank canvas. Q: Is there a goal or levels in Physics Sandbox? A: No levels or objectives—it's a sandbox toy. You set your own experiments and goals.