A local restaurant had this game, and every time we went, I'd beg my parents for money so that I could play it. I wasn't very good at the game, so I never got past the first stage, and so I heard this song a lot. Really gives me nostalgia.
Also got to shout out Streets, from Timesplitters too. I put a lot of time into this game as a kid, and this song is what got me into futurepop (love me some VNV Nation).
I probably spent so much time during my formative years (and some of my adulthood) playing Age of Empires II and Age of Mythology that these were the only ones I could remember off the top of my head. Many others I can remember if I think about the game, but not as easy.
Also, Asylum Demon, Firelink Shrine, Ornstein and Smough and Gwyn Lord of Cinder from Dark Souls 1. I've probably beat that game dozens, if not hundreds of times, and have used a ton of playthroughs as background noise before going to bed.
The ambient music from Mass Effect 2 that plays while you're probing for resources. I know lots of people hated that mini-game, but I found it extremely soothing and spent hours and hours doing it.
Okay, the songs that are belovedly burned into my brain are coming from FF7 Original, Disco Elysium, Civ 4, and so on. They're great songs from great games.
On Christmas Day of 1999, I was gifted a copy of Homeworld. A few days later I was treated to a very groovy credits track by Yes, a band I had never heard of... but now wanted to hear more of. So I decided to give this new thing called Napster a try, and my first search was Homeworld Yes. The rest is history - in a real sense, I discovered music that day.
Mickey Rourke's voice lines in the atrociously bad game Rogue Warrior, spliced by the Devs into a rap for the end credits:
https://youtu.be/OVoyGUcXepc
I would do it for karaoke if anywhere had it as a track.
GoldenEye pause music. Press pause, Bond flicks his wrist to look at his watch. This plays:
https://youtu.be/qoWCB8AUiP4
Insanely hard beat.
Bonus mention to Zerg Free Radio in Starcraft, a parody of Radio Free propaganda channels:
https://youtu.be/o7XV9fRAhu0
Shit I'm too late to the party, but Banjo Tooie soundtrack runs through my mind constantly.
Glitter Gulch Mine was my shit you ever heard a donkey used as an instrument? Well now you have
Good song: Fear Mountain Shrine ambient track from Shadows of Valentia OST. Really sets the mood for the dungeon, and it makes it that much better that the dungeon is windy and massive. If Fire Emblem brought back dungeons, they have a model to work off of.
Bad song: The HORRIBLE Fire Emblem Engage Anime Opening song. I don't want to remember this song and I wish I had never heard it. If you say "Emblem, Engage!" to anybody who listened to that song before, it will play in their heads as you both collapse to the ground.
I listen to a lot of game soundtracks at work. Atm, this song is stuck in my head because so many YouTubers/streamers play it: Steam Gardens - Super Mario Odyssey
I stumbled on the OST for the unreleased Jazz Jackrabbit 3 recently, and I keep playing this track every now and again, it's such a banger. This whole subgenre from Epic Games' early efforts (and stuff those composers did for other companies) is really cool, I with there more games beyond the Unreals and Deus Ex with that style. This track from Unreal 2 is another great one
The cut Downtown theme from Vampire: the Masquerade - Bloodlines, it's just such a vibe
Fertile Rondo from Bayonetta 3 is also just , great 5th Element vibes
This track from Descent (this particular recording off a Roland SC-55, I'm pretty sure I originally found it on youtube but it seems like that upload may have been taken down, and a lot of the other ones I could find don't sound as good)
The whole Neotokyo soundtrack really, just an absolute masterpiece composed for a free mod for some reason. Some standouts: Beacon, Imbrium, Tachi, I just absolutely love the combination of more electronic sounds with strings and piano in a lot of these.
On the more ambient side of things, STALKER has some great ones, Call of Pripyat especially, like the Pripyat theme
Somehow spaced on this completely but my kid and I played through Cassette Beasts recently and a ton of the songs from that are really good. He regularly requests them in the car when we're driving somewhere.