The Legend of Zelda: Ocarina of Time

 
Vampire Bloodlines

 
Doom 3

 
Quake

 
Diablo II

 
Castlevania

 
Metal Gear Solid 4

 
Sonic The Hedgehog 2

 
The Neverhood and Skullmonkeys games - These are quite easily the best soundtracks ever.  I have both games.
 

 

 

 
Support the artist and buy Imaginarium: songs from the neverhood (includes both soundtracks from neverhood, skullmonkeys as well as boombots)  from
 
http://www.danielamos.com/store/index.html
 
Street Fighter 4

 
Extreme-G (Techno and trance):


Extreme-G 2 (Drum and bass-ish):

 
Castlevania 2 Simon's Quest - Bloody Tears:


Bloody Tears awesome cover on guitar:

 
Chrono Cross "Scars of Time"

 
WipEout HD

 
Mass Effect 3 - A Future For The Krogan (Vocals by Lisbeth Scott, who also did vocals for Here's To You used in MGS4)

 
Earthbound - Pokey Means Business