Your system asks for less motion, so the ant starts paused and the camera jumps instead of gliding. Press play when you are ready.
Running on the main thread; top speeds may stutter. Serve the page over http or https to run the simulation in a worker.
Eight ants is the limit.
One letter per cell state: L turns left, R right, N not at all, U around. Press Enter to apply. Changing a rule, adding, or removing an ant restarts the run; colors change live.
Press Bookmark this step when the trail looks interesting.
With the grid focused: Space plays or pauses, the period key steps once, arrows pan, plus and minus zoom, 0 fits the trail. Escape closes this card.
Ant needs the HTML canvas. Open this page in a recent version of Chrome, Firefox, Safari, or Edge.