LongTurn is an alternative way to play strategy games.
Originally applied decades ago to FreeCiv, where we were running it "1 turn per day", I've now created a mod for Crusader Kings III 👑
Time will run super slowly, so much that 30 days of game time will pass in about 1 day of our time ⌛
Thus, you'll be able to connect once a day or even less, do your stuff for 5 minutes or so, and come back the next day.
Since the game isn't originally programmed to work this way, there will be many quirks, such as AI changing things and taking decisions for you while you are away.
I hope we'll be able to fix some of those eventually 👀