steps

Langton's Ant Lab

Two rules, then 10,000 steps of chaos, then a highway. Drop your own ants and invent new rules.

Speed

Pick an ant

Its rule

Tap a colour to change its turn. The ant reads its tile's colour, turns (L left, R right, N straight, U U-turn), paints the next colour, steps forward.

Your finger

Drag to look around, pinch or scroll to zoom.

Your turn: Find a rule that builds something nobody has seen. Paste your link in the comments.

Share or take it home

⬇ Download (one file, runs offline) All demos as a .zip

One HTML file, no install. Space play/pause · → one step · R reset

From the videos

This ant follows just 2 rules...

2 Rules. 10,000 Steps of Chaos. Then THIS

You asked for 3 ants. Here they are

Ant Fight Night: Who Gets Out of the Mess First?

This Ant Stayed Home for 15,892 Steps. Then It Built THIS

This Ant Draws a Perfect Square of Diamond Ripples