I was going to say replaying but I feel like that limits the question to games like Prey or Fallout New Vegas that have endings and games like The Sims 2 or Cities Skylines where you can play indefinitely end up excluded.
I’m not really referring to games like League of Legends where you’re coming back every month. More so games where you stop playing for an extended period of time.
Satisfactory, I’m hoping to get employee of the planet cup before 1.0 comes out.
Angband. I don’t stick with it long, but I always come back, even though I’ve never killed Morgoth or the Balrog in Moria before that. Still, I enjoy it for a while and then move on again.