I’m not sure if it has Autumn/Fall vibes, but I’m tempted to get Slime Rancher 2. I guess it’s appropriate for harvest season, as you’re farming and harvesting slimes? Something about it (at least I got this impression from the first game) feels cosy and perfect to play while the days get colder.
I’m playing through the Plucky Squire. It’s lovely to look at, and really wholesome! Feels a bit hand-holdy with some of the puzzles but nevertheless I’m enjoying my time with it.