The connectome of Caenorhabditis elegans with its 302 neurons is known for years now. Has someone written a C.elegans simulator based on that connectome?
If you mean whether there’s an Eyewire for C. elegans, no, that connectome was completed after more than a decade of essentially hand-coloring slides. You can view some information about that project here at the Open Connectome Project, although I’m not sure all their links work. I hope this helps, but let me know if I’ve misunderstood!