I really enjoy more calm, relaxing music, and a lot of game soundtracks offer that sort of thing, especially really well-orchestrated games (I feel like video games are one of the rare places where you hear that sort of thing anymore).
I could make a list of soundtracks a mile long, but I'll just mention some of my favorites in no particular order:
- TES3: Morrowind
- Hotline Miami
- El Shaddai
- Sword x Sworcery (Jim Guthrie is the man!)
- Malicious (I highly recommend this game, it's a bit meh on the gameplay execution, but it looks super slick, the music is fantastic and the concepts behind it are really pretty cool and I wish they had been executed a bit better. The story is pretty interesting too, though it's told mostly through a text dump on the main menu screen)
- Nier (Fantastic soundtrack, absolutely fantastic, you owe it to yourself to give this one a listen)
That's not even the half of em, but yeah, I really, really love a good game soundtrack. Delver's Drop is probably going to be added to the long list very soon, and it'll probably stand pretty high up on that list for a good while if the rest of the soundtrack is as good as what we've heard so far
I don't just listen to game soundtracks to be clear, I just tend to listen to only a few songs from each artist so it's hard to say exactly who or what I like. I like a lot of Jon Brion's movie soundtracks, a couple of songs from a guy named Helios, Gotye, (Somebody That I Used to Know is okay, but honestly it's my least favorite of his stuff, State of the Art is probably my favorite) lots of different stuff. The music I typically don't like is really don't like is anything too fast or intense or aggressive, so Heavy Metal and Rap don't gel with me too well. That's not an absolute thing, I've heard Metal and Rap that I thought was pretty alright, but it's a very rare occasion (General Tor's theme from Iji is probably the closest thing to Metal that I really enjoyed).