I'm kinda addicted to Session: Skate Sim and could easily just play it forever lol.

But okay, if I had to really think about it, I don't think I'd pick a game that is just a single-player "story" game. Even if it has high replayability like a WRPG, soulslikes, etc.

I'd likely pick a fighting game or Diablo 2 LoD/R. The thing about the fighting game choice is that it risks player population decrease. Hmm... I'll just say Session: Skate Sim for now lol.