People Playground

A physics sandbox with no goal, no score and a large box of tools. There are ragdolls, there are forces, there are materials that conduct, burn, break and explode, and the whole game is the interaction between them — which means what you get out of it depends entirely on what you decide to try. The reason it holds attention longer than a toy should is that the simulation is consistent enough to reason about. Electricity travels through conductive material, heat spreads, joints have limits, and contraptions you build behave the same way twice — so a machine that works is a thing you designed rather than something that happened. That turns an aimless sandbox into something closer to an experiment bench, and the interesting sessions are the ones where you set yourself a problem. Nothing about it is competitive or progressive. You will spend ten minutes or an hour depending on whether an idea arrives, and nothing is lost either way. It needs a moderately capable machine when the scene gets busy, plays with a mouse, and runs in the browser without a download. What it asks for is curiosity rather than skill.