You like Retrodays but you don't want to squint at tiny sprites? Well here's a solution: GiantDays! Basically Nerodays tileset upscaled and redrawn to 20x20 sprites
It's currently available in the tileset repo
https://github.com/I-am-Erk/CDDA-Tilesets/pull/2098
and should get shiped with the game soonish