Patient Gamers

The entire Ace Combat series, particularly from 4 onward are almost entirely comprised of the best music I've ever heard. I couldn't reccomend all the specific tracks because i'd probably hit some sort of character limit but each game has a "flagship" track which I'll highlight here:

• Rex Tremendae + Megalith -Agnus Dei-
• The Unsung War (special mention to First Flight)
• Zero
• The Liberation of Gracemeria
• Daredevil

Also will reccomend both the Metal Gear Saga (e.g. ...Metal Gear Saga)

And the Boss themes from Metal Gear Rising

• Rules of Nature
• I'm My Own Master Now
• A Stranger I Remain
• The Stains of Time
• Red Sun
• The Only Thing I Know For Reap
• Collective Consciousness
• It Has To Be This Way

Destiny 2 has some fantastic pieces. Deep Stone Lullaby, Journey, Aethenasia (sp?) to name a few.

Refunct

My favorites:

• Superbrothers: Sword & Sworcery LP
• Hyper Light Drifter
• Into the Breach
  • Basically, Ben Prunty does amazing work. FTL and others have already been mentioned

Marathon 2: Durandal has only one song, the title theme, but I do like it as a good "get one pumped to play the game" song! From the band Power of Seven.

EDIT: Also, while I don't know if I'd want to just listen to it alone outside of the game

never tried

Jets'n'Guns has a soundtrack that works well for the game. Done by the band Machinae Supremacy. One of the game's levels is set in a future Machinae Supremacy concert.

Also, Bandcamp link for the soundtrack: https://machinaesupremacy.bandcamp.com/album/jetsnguns-soundtrack

Gonna list 2 that deserve the "great soundtrack" tag on steam:

• Assault Android Cactus - twin stick shooter/bullet hell with cute android girls blasting robots. Techno stuff, with my 2 favorite tracks being Liquorice (it's divided in 3 "acts" as it's a boss music) and Assault
• Cloudbuilt - 3D platformer with focus on speed. I suck at this game, but the tracks are amazing, with my fave being Aurora

Someone else mentioned Unreal 1, but I gotta say, Unreal Tournament 2004 has some absolute bangers, like Morpheus3, Hyperblast Redux, Level11 and Convoy

I'm surprised no one said Touhou yet.

https://www.youtube.com/watch?v=XqH79HDfrr8

Also, I see a lot of love for Celeste and Jet Set Radio in the comments. Y'all have good taste.

Rebel Galaxy - country rock genre? Very unique and different sort of music.

Trine 1 & 2 + Transport Fever 1 - instrumental background music good for concentration, working, studying or just relaxing.

Bonelab with would you even know, don't fence me in and turn around. Some of my favourite video game music moments.

A Plague Tale is a master work by Olivier Deriviere. Take a listen here. It really amplifies the immersion of the game.

I just finished Frostpunk recently and have to say I really enjoyed the soundtrack.

One that sicks in my memory years after playing it is the soundtrack for Expeditions: Conquistador.

Evil genius has a soundtrack that fits it perfectly. That game has such a good vibe, like playing The Incredibles if they were trying to take over the world

Hi-Fi Rush

Lollipop Chainsaw

Kingdom Hearts

Guitar Hero 3