New Folder button in save/load game screen

[HadesSupreme]

Factorio supports subfolders for organizing save games, but there's no way to know this unless you navigate there and create the folder manually. Having this useful feature be more discoverable by letting players create folders in-game would be nice.

[Silari]

Already a LOT of threads on this.

viewtopic.php?f=6&t=106742 lists a few of them.