There is a whole album for Dwarf fortress that is just incredibly atmospheric guitar, give it a listen. Personal favorites: Strike the Earth and Vile Force of Darkness. They both slap so hard

Spokey Dokey by the SEATBELTS

And

It’s Never Too Late by Tommy Emmanuel

Also

Lazy Place by Caravan Palace

And honestly anything by Stone Rebel

Edit to add: OVERWERK does EDM-ish mixes/covers of classical music. Toccata is really good

Philip glass’s etudies #6

oh and Steve reich made a duet with glass and others

How about some Gotan Project or Tabla Beat Science?

Big fan of We Lost the Sea, especially the album Departure Songs.

Passacaglia by Bear McCreary from Battlestar Galactica is the first thing that pops to my head.
https://youtu.be/Y9CqU1aMqyg

The rest of the BSG soundtrack is incredible in this regard as well.

World of Warcraft has some of the best instrumental music out there in general though im not sure if it counts as instrumental as choir is often used. This recent orchestra rendition of Wrath of the Litch King expansion is incredible: https://youtu.be/DoRkjNKOe20

Hans Zimmer. Add collabs with Lisa Gerrard and Klaus Badelt for Gladiator and Pirates of the Caribbean. Honestly, just go through the whole range of emotions and watch/listen to his Live in Prague. Start to finish it’s beyond wonderful. His soundtrack to Madagascar has no reason to slap as hard as it does.

Dayvan Cowboy by Boards of Canada is probably my favorite instrumental of all time (BoC is instrumental ambient electronic, mostly experimental).

https://www.youtube.com/watch?v=Ng2vTXxnD20 Original track

https://www.youtube.com/watch?v=m1TyX33PfwY And an most incredible remix

Boards of Canada for some lofi nostalgia

Streets of Rage soundtrack, Sonic 1-3, donkey Kong country aquatic something is a killer

Commix - call to mind is some classic dnb, some lyrics but often looped and mixed to be more of just another instrument

Sasha - airdrawndagger, more ambient slower melodies

Tycho - dive

Anything by Philip Glass or John Williams

Cloudkicker - Beacons, progressive metal band instrumentation kinda like animals as leaders

2010 Toyota Corolla - 2003 Toyota Corolla is the new national anthem

Bohren & der club of gore for some slow noir jazz

You could try The Endless River by Pink Floyd

From wikipedia

The Endless River comprises mainly instrumental and ambient music

I haven’t kept up with David Gilmours solo efforts but I think his post-floyd recordings are in the instrumental genre.

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50//50 - Vantage

A nice and chill song I love driving to.

if these trees could talk is always where my mind goes when thinking instrumental only

I don’t see Explosions in the Sky mentioned yet but they’re definitely worth a listen.

Really like Chopin’s nocturnes.