What game feels 'timeless' to you?

https://lemm.ee/post/1689641

What game feels 'timeless' to you? - lemm.ee

For me it’s Chrono Trigger. I always want to play it. I want to show it to my children. I hope it will be regarded as a masterpiece for generations to come.

DooM (1993), but mostly because of the community. Constant new levels, mods, engine updates, total conversions. Even commercial games released on the engine. It just never stops.
A good level in that game goes harder than any current AAA fps I can think of. Probably the remakes get pretty close, and they blew everyone away because they were a massive improvement to the fps formula, but idk if I’d ever call the remakes “timeless”.