Literally any Final Fantasy for me. Nobuo Uematsu is just an incredible composer.

Dragon Quest series too, although Koichi Sugiyama was a…not great person.

Monkey Island 2 holds a special place for me because it introduced iMUSE and dynamically altering the music with the environment which was years ahead of its time.

Oh I can’t forget the To the Moon series of games by Kan Gao too. The music is a big part of why those games are such tear jerkers