Depends on which side of the exhaust you are on.
I have two machines that back up to a local server using Borg. That whole server in turn backs up to Jottacloud using restic with encryption enabled.
By the way, I wouldn’t use rclone for backups. Use restic or something similar that does incremental backups. Because if you do rclone and then later discover that some files were corrupted locally, then your files are gone. With incremental backups you would still be able to retrieve them.
Oh, or do you mean backing up the stuff that is on the cloud?
Definitely. Just start on easy mode and make sure you upgrade your engines. :)
I can definitely recommend FTL: Faster Than Light. I still play it after many years in the exact same way you describe, that is short sessions. t’s all based on battles that last minutes at most while part of an overall campaign. You can quit anytime, even during battle, and it will just saw the state. You can pause during battle to think as well.
it also has simple rules but with a lot of depth. You upgrade your ship from time to time and also get new weapons or defences. It actually sounds like a perfect fit for what you want. It’s cheap too.
I managed to fit an entire Matrix Synapse server on one of those. It works surprisingly well! You will need a domain for it though.