Every winter I'll start a new survival mode sandbox. 600 hours of gameplay. I have games I played for longer, like Borderlands 2, but I keep playing the Long Dark, and for many winters to come.
Red dead 2, Horizon Zero Dawn, Cyberpunk 2077, Death Stranding, Control, and Hogwarts Legacy just to name a couple. I don't have a favorite game but those would probably be my top picks.