Phun Algodoo -

Want a ramp? Scribble a line. Want a box? Draw a rectangle. Want water? Grab the fluid brush. Everything you create instantly has mass, collision, and reaction to forces.

The community exploded. Suddenly, teenagers were building working gear trains, marble machines, catapults, and hydraulic lifts—all in a free, lightweight program. In 2008, the team behind Phun founded and released a polished, professional version named Algodoo (a playful mix of "Algoryx" and "Phun"). phun algodoo

At first glance, Algodoo looks like a toy—a colorful, 2D playground for bouncing balls and crashing cars. But after spending a decade away from it and coming back as an adult, I’ve realized something surprising: Want a ramp