Oh fuck yea! Prepare for a wall of text! I love each of these OST's but I'll try to cut a few from each.If any of these were added b4 I'm finished writing then my apologies. Here goes:
FFX: Calm Before the Storm: https://www.youtube.com/watch?v=dmcgrU0VZSk
Servants of the Mountain: https://www.youtube.com/watch?v=1Nd4pvnkPUY
Enemy Attack: https://www.youtube.com/watch?v=0GBNhqL7-xE
A Fleeting Dream: https://www.youtube.com/watch?v=FhYQLgd1h8I
Movement in Green (Overworld Theme): https://www.youtube.com/watch?v=TVvqIgldbbc
Chocobo Jam: https://www.youtube.com/watch?v=aD42kzuoMow
FFIX: Melodies of Life: https://www.youtube.com/watch?v=I7Vu6NxehcM
You're Not Alone!: https://www.youtube.com/watch?v=KKAoSY5bhSw
Battle 1:https://www.youtube.com/watch?v=r_rFivhPBCM
Battle 2: https://www.youtube.com/watch?v=9imGOOqh7uQ
Vivi's Theme: https://www.youtube.com/watch?v=FxXL_1dxScA
The Place I'll Return To Someday: https://www.youtube.com/watch?v=vW3QK6CTg2g
FFVII: Jenova: https://www.youtube.com/watch?v=J6GrZYE2il0
Main Theme: https://www.youtube.com/watch?v=6UARM4q7hHU
Aerith's Theme: https://www.youtube.com/watch?v=fIqKWLkm2-g
One Winged Angel (AC Version): https://www.youtube.com/watch?v=B_MW65XxS7s
Shadow of the Colossus: The End of the Battle: https://www.youtube.com/watch?v=n4rKOFU8-RY
Demise of the Ritual: https://www.youtube.com/watch?v=AxnnJxfK9hk
The Opened Way: https://www.youtube.com/watch?v=BbOnvj9wZKc
MGS2: Main Theme: https://www.youtube.com/watch?v=QiPon8lr48U
MGS3: Snake Eater: https://www.youtube.com/watch?v=9aHQnDTd1y4
The Last of Us: The Last of Us: https://www.youtube.com/watch?v=cwDkutphzmU
All Gone (No Escape): https://www.youtube.com/watch?v=RBi9lr176uA
The Path (A New Beginning): https://www.youtube.com/watch?v=3o_RwQysgA8
Home: https://www.youtube.com/watch?v=nV8sY2Xv3Os
The Choice: https://www.youtube.com/watch?v=XYUErkvORWA
Seasons: https://www.youtube.com/watch?v=kZBngxDOQgY
Assassin's Creed 2: Tour of Venice: https://www.youtube.com/watch?v=ZJz9OGYmPvs
Home in Florence: https://www.youtube.com/watch?v=6mn_PIAh72A
Dream of Venice: https://www.youtube.com/watch?v=KvZHAT7xHO4
Uncharted 2 : Nate's Theme: https://www.youtube.com/watch?v=nkPF5UiDi4g
The City's Secret: https://www.youtube.com/watch?v=vckNK19y4rY
The Monastery: https://www.youtube.com/watch?v=-NFMchVBokU
Bioshock: Dr Steinman: (YOUTUBE HAS THE WRONG LINK BUNCH OF FAGGOTS)
Cohen's Masterpiece: https://www.youtube.com/watch?v=nlu2z2gkhhI
Mr Bubbles/Little Sister: https://www.youtube.com/watch?v=q5eaWQWnIl0
Call of Duty 4: The Whole Facking Thing : https://www.youtube.com/watch?v=hh1TwiVQgSI
I honestly love the shit out of this OST
Skyrim: From Past to Present: https://www.youtube.com/watch?v=xhJTMeytTWw
Distant Horizons: https://www.youtube.com/watch?v=1eF2gOBC848
Frostfall: https://www.youtube.com/watch?v=VOVWjb1WZI0
Far Horizons: https://www.youtube.com/watch?v=Ga8KbMcUfm8
I have many more awesome songs to recommend but I'd better stop now lol