Video Game Related: Elder scrolls OST (always and forever!), Ar Tonelico II OST, I just recently discovered the Shadow of the Colossus OST as the colossus death theme was stuck in my head. Kow Otani is a brilliant composer.
Non-video game related (albums): Killswitch Engage-Incarnate and Disarm the Descent, Disturbed-Immortalized, CHVRCHES-Every Open Eye, Lacey Sturm-Life Screams, Wovenwar-Honor is Dead