Slugs on a Cube: An Interactive Animation
blog.gingerbeardman.com
blog.gingerbeardman.com
Was also looking at Marine Microrganisms [1] because of the Ars link earlier about the plethora of organisms away from the Earth's surface, and the general idea of the tubules on a surface has quite a bit of similarity to collections like Pelagibacter ubique [2]
[1] https://en.wikipedia.org/wiki/Marine_microorganisms
[2] https://en.wikipedia.org/wiki/Marine_microorganisms#/media/F...
Might also be interesting as an alternative on the game of life types of ideas, with rulesets about how the tubules are motivated to move relative to each other, rather than a priori specified movement paths.