Should we make the final builds playable in the browser, or just downloadable? I am asking this because BlackthornProd will be asking us to rate them, so we may have to play quite a few games...

I would say both Web Version is a must because most people don’t download to play a bit of hassle. So web version is compulsary.

For most jams, web versions are very recommended, but builds for major platforms are also welcome. You can upload both on the same page so go all in if you can! Web exports have also the added bonus that they're compatible with multiple operating systems. Not everybody is using Windows!