passenger

I would recommend pika for easy backup, steamdeck (or even a windows pc) could have problems with cloud saves. If you want real backups you should set up deduplicated archives. This means you just install pika and click a couple times. You can set it to backup over ssh. The deduplicated compressed backup is often smaller than source data size even if it has years of archives.

What about nethack? Dwarf fortress? I think you can easily do stuff not explicitly programmed by the devs in such games. These are not immersive sims but I am open to the idea of a text based immersive sim. I think there are many examples, maybe caves of qud (haven’t played) where you can do some mind blowing stuff but usually they are called roguelikes not immersive sims.

I can recommend duplicati on windows or pika backup on linux. Then just make a user on raspberry pi and enter the ssh login in your backup client and you’re set. Rsync won’t deduplicate or make archives so you cannot restore a backup from any chosen date. Rsync is sync not backup.

Ban this vibecoded thing. Someone maybe had good intentions, but it doesn’t help anyone here

This should be top comment