Is this good for hobbyists & makers?

Yes — this version of "Forest Fire Model for a crowd evacuation" is framed for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker.

Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Hobbyists & Makers · Forest Fire Model

Forest Fire Model for a crowd evacuation

Built for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker. Simulate a crowd evacuation live below — adjust the inputs and watch it respond, right in your browser.

Forest Fire ModelLive

self-organized criticality

Controls

Speed1×

Presets

Growth rate p

Lightning f

Trees grow at rate p; lightning ignites one at rate f; fire spreads to neighbors. The ratio p/f self-organizes to a critical state where fire sizes follow a power law — a classic model of self-organized criticality.

▶ Run in Python

Data Inspector

Living trees0

Grid120²

p / f50

Governing equation

P (grow) = 0.01, P (ignite) = 0.0002, \frac{p}{f} = 50

Reading this result: Near p/f around 50 the model sits close to its critical point, where fire sizes span every scale in a power law — the signature of self-organized criticality.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

Also for:Students Researchers Educators Engineers K-12 Students First Responders General version →

More with Forest Fire Model

Forest Fire Model for a traffic jam Forest Fire Model for a bird flock Forest Fire Model for a forest fire Forest Fire Model for an ant colony Forest Fire Model for a rumor spreading Forest Fire Model for a market bubble Forest Fire Model for a power-grid cascade Forest Fire Model for an ecosystem

Frequently asked questions

Is this good for hobbyists & makers?: Yes — this version of "Forest Fire Model for a crowd evacuation" is framed for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.