Still playing Vilmonic. It's super good for just kind of throwing on a podcast and zoning out and clicking around or just watching to see what happens. Starting to understand it a bit better, I've figured out how to dig up radiation to mutate the lifeforms faster, and I'm getting the hang of building, but trying to actually steer the direction of evolution is pretty hit and miss? I assume if you want, say, amphibious anims, the idea is to shove a bunch of anims into a space that's more watery than they would prefer and wait for evolution to do its thing. Which would be fine, except that mostly when I do this they all seem to die out. Maybe I need more and/or tougher lifeforms.
In other pixely-fungus-and-bugs simulator news, I have also been playing Earthtongue! I honestly kind of love it. It's not an evolution sim, or at least not in the sense of the individual creatures evolving, though you do kind of get to watch an ecosystem evolve and change. It's basically a vivarium simulator: throw in some bugs, some fungus, and see what happens. Maybe they'll all die. Maybe the bugs will reproduce wildly and eat all the fungus unless you keep throwing more in. Maybe they'll find a perfect symbiotic equilibrium!
Slightly morbid note: it seems to take bug corpses a long time to decay, which means that a few times when I've clicked away and left Earthtongue to do its own thing for a while, I've come back to find the bugs scrambling over the corpses of their predecessors stacked 3 or 4 deep. Little bit unsettling at first, but hey, it doesn't seem to bother them.
Really awesome note about Earthtongue: it's only $5, but if you're struggling to afford it, there's also the option to pay by making some fanart.