Tribes 2
https://www.youtube.com/watch?v=Rt46KEzauG4&list=PLE89316F044083D36
Desert and lush are my favorite tracks from Tribes 2
https://www.youtube.com/watch?v=yqFZtBiHAZA&list=PLE89316F044083D36
https://www.youtube.com/watch?v=1nTJQxkcz54&list=PLE89316F044083D36
Am I to guess someone has already said Bastion?
https://www.youtube.com/watch?v=gQWAcgefsQQ
https://www.youtube.com/watch?v=3mDWzu5yxLg
^ I need to finish that fucking game. It has amazing music and a really cool aesthetic.
Fez has a pretty marvelous soundtrack.
https://www.youtube.com/watch?v=Pl-fz_cRL6M
https://www.youtube.com/watch?v=IlBQh6N7RDw
GTA Vice City had the best radio stations (which is expected since 80’s is the best decade for music)
Planetside 2 has some really nice tracks. The neat thing about them is that each of the three playable factions has a completely unique soundtrack; the Vanu get synthy techno music, the Terrans have a suitably heroic, war movie-style soundtrack, and the New Conglomerate get country rock. 
VS compilation: https://youtu.be/Cdv13cHWl4U
TR theme song: https://youtu.be/qZtnUCdeW1M
NC compilation: https://youtu.be/zJS_al-QhBw
Was inevitable for me to post this, but I forgot about FEAR’s soundtrack
https://www.youtube.com/watch?v=DjnhymrZtAY
It really fits the game and not only enhances the atmosphere, but it definitely sounds different enough that I can say this stuff “sounds like FEAR”
Paranautical Activity has some JAMMIN beats.
Just started playing SiN episodes and I quite like the title theme
SiN episodes makes me want to go back to early-2000’s cyber punk
Skyrim is up in my list of favorite soundtracks now.