Algodoo is a unique 2D physics sandbox software. It allows you to create, explore, and experiment with physics simulations using simple drawing tools. Originally called "Phun," it was developed by Emil Ernerfeldt and later spun off into a commercial product (though it is now free for personal use).
Whether you are a student learning about gravity, a teacher demonstrating friction, or a hobbyist building complex marble runs, this guide will help you master the basics.
When you right-click any Smart Connector, instead of a complex script window, you get a Property Card—a simple, visual card that floats in the 2D space. phun algodoo
Phun Algodoo – if you mention these two words together to anyone who grew up browsing the internet in the late 2000s or early 2010s, you will likely be met with a nostalgic sigh. For millions of students, hobbyists, and aspiring engineers, Phun and its successor, Algodoo, represented the first time they could play with the laws of physics without needing a degree in mathematics.
But what exactly is the relationship between Phun and Algodoo? Why are they so often linked together in search queries? And why, over a decade later, does this 2D physics sandbox still have a cult following? Algodoo is a unique 2D physics sandbox software
This article dives deep into the history, features, and enduring appeal of the software known collectively as phun algodoo.
In late 2008, Emil Ernerfeldt teamed up with a company called Algoryx Simulation (now well-known for their physics engine, AGX Dynamics). Algoryx saw the potential in Phun but needed to rebrand and professionalize the product for educational markets. When you right-click any Smart Connector, instead of
Thus, Algodoo was born (a portmanteau of "Algoryx" and "Do").
The transition from phun algodoo is often confusing for retro users. Here is the breakdown:
Phun/Algodoo is an interactive 2D physics sandbox for building and simulating scenes with rigid bodies, fluids, joints, forces, and collisions. It’s used for education, demonstrations, game-like experiments, and creative play.
Algodoo is available for Windows, Mac, and iPad.