That game, man. I bought it completely blind at gamestop when I went to pick up my copy of Halo 3 on launch day. I had no idea what it was.
I played halo for a couple hours when I got home from the store, then decided to try out Oblivion. I think the next time the Oblivion disc left my Xbox was to start Fallout 3 a year later. I never went back to Halo.
There are multiple, but to list something original:
Ori and the Blind Forest. I repurchased the game for the Switch, but it didn't have the same magic as the first time I played it on PC (where it was my GOTY). It definitely has a much stronger impact on first play through (even though I didn't got that far on PC, that's why I bought it on Switch so I would finish it).
Interestingly, I realized most of the games I play gets better with time, so most of them I actually do not want to re-experience from the beginning, like Monster Hunter, Skyrim, Diablo, Warframe, League of Legends, Street Fighter, heck, even Animal Crossing. I should call them fine-wine games from now on.