i love the music from the kingdom hearts and pokemon mystery dungeon series
ratchet and clank has some good music, too.

Kingdom Hearts.
Also Sonic and Pokemon.

Are ya'll kidding
Has nobody mentioned Minecraft

Seriously
Like... Not only the background music but theres a good bundle of discs to go around

Pokemon Mystery Dungeon and Kid Icarus: Uprising have some beautiful tracks in them.

Actually, FNaF has the best music. Foxy's 'Dum Dum De Dum' was stuck in my head for weeks.

I feel like I'm gonna be the only one here who likes Terraria's music.Every biome in it has a great soundtrack.

halo/crysis soundtracks pls

Super Metroid and the whole Metroid Prime series fo' sure.

How sad, nobody mentioned Frank Klepacki's music for C&C Red Alert 2

The Legend of Zelda.

And the Super Mario Galaxy franchise

all Sonic games

best music eva

I think the music of Fall Out 3 and Fall Out: New Vegas. It really adds so much to the game play environment and feel. The only other game I can think of that is similar is To The Moon and A Bird Story.

can we please talk about the zelda soundtrack i think i have shed actual tears from how beautiful it is

Twighlight Princess i think, has the best Zelda music, ever

any ea skate game

-Ōkami
-Legend of Zelda: Twillight Princess
-Flower
-Ōkamiden
-Pokemon: Soul Silver
-Pokemon: Heart Gold

Persona 3 & 4, Elder Scrolls series, Final Fantasy VII & X etc...

Xenoblade Chronicles. The soundtrack for its sequel (Xenoblade Chronicles X) is just as extraordinary if not better.

Other personal favorites are:

• Fire Emblem: Awakening
• Paper Mario: TTYD
• FFXIII
• Legend of Zelda: Twilight Princess

Wipeout 2097
But as OST I'd say Castelvania or Megaman2