Bill Davies has released an alpha version of ToneCarver Nova 3, a generative sequencer inspired by Otomata (by Batuhan Bozkurt) that uses cellular automata to generate emergent sequences of midi notes.
The idea is that a set of rovers move through a matrix of cells until they encounter a wall, another rover, or an obstacle. When a rover encounters a wall, it emits a midi note corresponding to the row and column, then reverses direction. When a rover encounters another rover, both rovers are rotated clockwise. When a rover encounters an obstacle, the effects of the obstacle are applied to the rover which could alter its position, its direction, both, or neither depending on the type of obstacle.
Nova 3 is available as a free download for Windows (VST).
More information: ToneCarver