It isn't exactly nostalgia for me (since I didn't discover Resident Evil 2 until the remake), but Looming Dread, the theme of the short Fourth Survivor in Resident Evil 2's remake, is awesome. It's the perfect soundtrack to the more action oriented campaign of HUNK, the Grim Reaper and one of...
Although utilized multiple times throughout the series, the title theme of the original Mass Effect struck me most upon hearing it in the original game. It invokes a quiet ambiance, a need to dive deep into a bright but unknown future.