Dragon Quest VIII opening
https://www.youtube.com/watch?v=i3xo_y3kbMsi dont know if any of you bois ever played DQ8, but it was so got damn fun. it recently re-released on the nintendo 3ds. pick it up if you like those sorts of games
Kaepora Gaebora
https://www.youtube.com/watch?v=WS07D8VoPIsFuckin' owl had some nice tunes. (i could link two dozen individual zelda songs, but i will refrain)
Witcher 3- Fields of Arg Skellig
https://www.youtube.com/watch?v=gokhBJWSjeMthis song by itself is pretty great, but when this some comes on in game, its one of the most immersive, peaceful feelings i've ever received playing a game.
Original Spelunky full OST
https://www.youtube.com/watch?v=jDG1moK6SCIThe original spelunky soundtrack was so wonderful. why derek yu changed it in the new version eludes me
Bastion - build that wall
https://www.youtube.com/watch?v=t8cELTdtw6UBastion's acclaim isnt in amazing gameplay(not that it isnt), but amazing story and soundtrack. i need to play this game again.
Atom Zombie Smasher - blue without you
https://www.youtube.com/watch?v=3p6XOtofnMEAtom zombie smasher was a fun game to waste 40 minutes on, but the menu music was by far the best. From the band Volcanics.
And last, but not least
Dwarf Fortress - Fortress Theme
https://www.youtube.com/watch?v=-6FXeupOp04Written and played by Tarn Adams himself. I've probably listened to this for 100+ hours
For those interested, many moons ago an avid DF fan reproduced the them on piano:
http://tindeck.com/listen/iodq