Ah yeah, I did that for a while until my save files started going over 200MiB, and I timestamp my base 4-5x per session, so I'm usually generating about 1-2GiB worth of save data per session (depending on the base). Steam cloud was no longer an option, so I had to fallback to some sort of manual solution.

Maybe Steam cloud is improved now? In that case I could re-enable it and have a double backup :)

Same. Dozens, maybe hundreds of files most of them 250-300MiB.

The nice thing about automation is I have no idea, it just works!*

• (As long as your save files are in one parent directory.. and not in a place with other "zip" files)