Slime mold behavior simulation. Implemented via flocking and pheromones seeking?
This might be harder than it appears... however, the look and basic behavior should be easier to simulate than the actual organism.
https://en.wikipedia.org/wiki/Physarum_polycephalum
As the slime mould does not have any nervous system that could explain these intelligent behaviours, there has been considerable interdisciplinary interest in understanding the rules that govern its behaviour. Scientists are trying to model the slime mold using a number of simple, distributed rules. For example, P. polycephalum has been modeled as a set of differential equations inspired by electrical networks. This model can be shown to be able to compute shortest paths.[12] A very similar model can be shown to solve the Steiner tree problem.[7] However, currently these models do not make sense biologically, as they for example assume energy conservation inside the slime mould. Living organisms consume food, so energy can not be conserved. To build more realistic models, more data about the slime mould's network construction needs to be gathered. To this end, researchers are analysing the network structure of lab-grown P. polycephalum.[13]
For P. Polycephalum, the look can be emulated via Hyphae (http://inconvergent.net/generative/hyphae/)
A pheromone + flocking based approach was done before: https://books.google.com/books?id=0gT1zMLEDloC&pg=PA427&lpg=PA427&dq=slime+mold+pheromone&source=bl&ots=dCrokp5bSi&sig=soBc3P8sRTmehZUMV9xWKG6Fq24&hl=en&sa=X&ved=0ahUKEwiJ18-L5JTUAhVU02MKHQ_rBtgQ6AEIQzAE#v=onepage&q=slime%20mold%20pheromone&f=false
We could make it into something useful and pretty Also sprouts fruiting body if aggregated
Dictyostelium also has lots of interesting studies done on it: https://en.wikipedia.org/wiki/Dictyostelium , https://www.youtube.com/watch?v=bkVhLJLG7ug
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