I replayed it the other week after not touching it since the original release. Was fun. I managed to forget a bunch of puzzles, and the new graphics made it fun to just explore the Ages.
Unreal Tournament and Deus Ex both come to mind. Alexander Brandon was involved in both and his work is absolutely amazing.
If we talk specific singles, though, it’s Morrowind (Nerevar Rising), Control (Take Control), and, recently, Baldur’s Gate 3 (Raphael’s Final Act). Morrowind’s tune is so ingrained in my mind that it’s my to-go whenever I get my hands on a keyboard.
I’m the same and I studied every nook and cranny during my first playthrough because FOMO was real. Guess what, I still missed enough things to make a second run no less entertaining―especially if you play a polar opposite of your original character. This game accommodates to pretty much every stupid decision you can throw at it and it’s amazing.