Physarum: Slime Mold Simulator

Physarum: Slime Mold Simulator is a simulation sandbox where you watch the slime mold Physarum polycephalum grow in real time. You can change and mutate its properties, explore ways to influence its behavior and learn about the real-life organism. Its multi-agent chemoattractant system produces varied, organic-looking patterns.

Shape the mold

You can run as many slimes as your computer can handle and watch them interact. Create environments using drawings, images, videos or a live webcam feed, then observe the slimes take on their forms. The morph system lets different slimes transform into one another.

Discover patterns

The simulation can produce many distinct patterns, which you can share with others.