Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles

I thought the same thing regarding the render texture and it seems like it is unfortunately really the only way. In addition, the project settings don't allow for perfectly square resolutions which means any projects will be letterboxed at best. I am considering not participating because I was going to just use unity since it is what i know, and it just doesn't allow 64x64 strictly.