What is the greatest song from a game's soundtrack in your opinion?

Civilization IV Theme https://www.youtube.com/watch?v=noneMROp_E8
Halo Theme https://www.youtube.com/watch?v=nMLkrTJ9BZI
Duke Nukem Theme https://www.youtube.com/watch?v=46MALEk-7cE
Vampire The Masquerade Bloodlines Theme https://www.youtube.com/watch?v=o6qo4msRqxU
Aliens vs Predator (2010) OST - Club Hive https://www.youtube.com/watch?v=PcgmsITRP-g
World of Warcraft Ragnaros Boss Battle https://www.youtube.com/watch?v=xIPX0Fe75Do
Death Stranding by Chvrches https://www.youtube.com/watch?v=bv2yNre7saU
Cyberpunk 2077 — No Save Point by Yankee and the Brave (Run the Jewels) https://www.youtube.com/watch?v=YAVvwv-YSJ4

Surprised this one hasn't come up yet
Hell March from C&C Red Alert

One of my all-time favorites is:
Race Against Fate by Alexey Omelchuk from Metro Exodus. It has a slightly slow start but when it gets going it's awesome.
https://www.youtube.com/watch?v=4Oc-vwvPHLg&ab_channel=MetroExodus-Topic

There's also:
Under No Flag by Johan Soderqvist from Battlefield 5
https://www.youtube.com/watch?v=BXRQ85E0tQk&ab_channel=OriginalSoundtrack

Rave On https://www.youtube.com/watch?v=AJO8uo3UMko

My favourite soundtrack always will be Alone in the Dark from the composer Olivier Deriviere, especially this theme: https://www.youtube.com/watch?v=KZrekbgGYYI&ab_channel=OlivierDeriviere-Topic , but almost all the soundtrack uses that great voice chorus.
And I just remembered this one https://www.youtube.com/watch?v=w2cK8mOG4Q8&ab_channel=homicidalxcookie by Akira Yamaoka, another main theme that I love.

There has been no greater soundtrack

Skyrim Main Theme with Tina Guo (Dragonborn)

A few of mine:
Deus Ex HR: Michael McCann - Icarus
Chrono Trigger: To Far Away Times
Mirror's Edge: Lisa Miskovsky - Still Alive
Unreal: Michiel Van Den Bos - Ruins
Need for Speed 6: HP 2 - Hot Action Cop - Going Down On It

Silent Hill 2 - Promise Reprise always gives me chills. I learned a bit of it on the piano, too!

I've also been playing a lot of Risk of Rain 2 with a couple of my friends and this song just hits right

Those are probably the top two on my mind. I could list many others like my favourite Elder Scrolls tunes (I use the Morrowind and Oblivion soundtracks to fall asleep at night), a couple from Black Mesa, someone else mentioned Still Alive below and I was addicted to that song for a long time when I first played Portal! So many good Nintendo tracks too.

I used to actually not care that much about video game music, but after a while I realized these pieces of music truly make the atmosphere and games themselves a lot more memorable.

Here's my contributions! Went for some ones I wouldn't expect most people to know. Cause let's be honest, we all know Bomb-Omb Battlefield is a bop that will go down in history!

Xenoblade Chronicles X - New Los Angeles (Day)
Splat2n - Riptide Rupture
Dragon's Dogma - Into Free -Dangan-
Sengoku BASARA: Samurai Heroes - Naked Arms
Metal Arms: Glitch in the System - Main Theme

Warcraft 1 https://www.youtube.com/watch?v=Jr70JM1swTI

Who Do You Voodoo from Dead Island

In terms of creepy ambiance, nothing can top Tristram's Town theme (by Matt Uelmen) from the original "Diablo". 😈

Koudelka Battle Music https://www.youtube.com/watch?v=Bj_sgpk8g9o

Savage

https://www.youtube.com/watch?v=b8NDwMqaGWA