So I got Plague Inc Evolved because it's dirt cheap rn and because there's a mod. Unfortunately, the mod's last release seems to be August of this year, and the game has updated since then. One side effect of this is that I don't think the available and purchased lists for transmissions, symptoms, and abilities are working correctly as a result. The problem with this is there doesn't seem to be any way of devolving stuff, and you kinda need to do that with viruses. Luckily, I made it through that run because it didn't decide to go crazy until the end, but if it evolved some shit I didn't want early on, I'd likely be screwed.