It has a 9x9 block grid and by clicking into one or many blocks the sequence is established. Then you press Play and watch/listen to the result. When selected each block has a directional arrow and by clicking that block again the direction can be altered (press 'STOP' before making changes). If a block encounters another it changes direction. Here's one I made earlier. if you press stop you can alter the selected blocks by clicking them, or clear the grid and enter your own cells to see how they sound:
http://earslap.com/projectslab/otomata/?q=10_13_150_443443570570460
From Batuhan's website:
Otomata is a generative sequencer. It employs a cellular automaton type logic I’ve devised to produce sound events.
Each alive cell has 4 states: Up, right, down, left. at each cycle, the cells move themselves in the direction of their internal states. If any cell encounters a wall, it triggers a pitched sound whose frequency is determined by the xy position of collision, and the cell reverses its direction. If a cell encounters another cell on its way, it turns itself clockwise.
This set of rules produces chaotic results in some settings, therefore you can end up with never repeating, gradually evolving sequences. Go add some cells, change their orientation by clicking on them, and press play, experiment, have fun.