I feel like most people who have been playing video games since childhood have one or more of a select few games that they go back and replay every few years.
For me I’ve been replaying Pokémon Emerald Version recently. Nothing like nostalgia and being able to better enjoy aspects of a game you didn’t understand as a kid. ☺️
I don’t replay games as much as I used to, but there’s definitely “classics” that I’ll hit up every now and then.
Old Bioware/Obsidian games definitely have a spot, as well as old Assassin’s Creed games.
The Portal series every once in a while. Those games never get old.
Various rogue likes when the urge strikes. Binding of Isaac and Hades are my two favs, though I just started Dead Cells and it’s pretty good.
Minecraft, but it’s basically a new game every time I get back to it, so not sure if that counts, hah.
There are also tons of games from my childhood that I often consider trying out again, but am concerned will have aged poorly. Old game design was pretty rough in a lot of cases.