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You can set restitution to 1.0—perfect bounciness. You can set friction to 0.0—infinite glide. You can lock axes, weld hinges, script thrusters with custom post-step math.

You start with a circle. In the new version, it snaps to a grid, eager to please. In the old version, you click, you drag, and it wobbles into existence—imperfect, slightly off-axis, held together by a physics engine that has just enough bugs to feel alive .

And every so often—if you press spacebar hard enough—something clicks . Not the click of success. The click of a hinge finding its true axis. A gear finding its tooth. A box coming to rest exactly where it was meant to, even if you never planned it.