It is not a dumb question. The downloads above are not intuitive. Mostly because of their size compared to the zip. And it is not mentioned that the zipped file contains the Danaume glorb. And it is not marked as a windows exe.
I would have expected (custom version of) git zip (marked for windows)
danaume version zip, strateg version zip, wonderfuller version zip
And as far as I can tell, those glorbs are not compatible in the slightest way regarding save games. So you cannot switch art or version in a run.