Inside the Deku Tree
from Ocarina of Time
Very sonorous
Pretty much all the night Animal Crossing music (Wild World in particular for me)
Beacon Pines (Spotify)
I didn’t play it, but my wife and kid did, but the music really stood out to me when it was playing in the background. The tracks, Memories and Lullaby complement each other really well.
Sable (Spotify)
The soundtrack by Japanese Breakfast was one of the best parts of the game. A very solid mostly wordless ambient pop album. But the standout track is Glide. The song itself is fantastic but the moment it plays the game is so damn perfect. The whole soundtrack did an incredible job setting the tone for a slightly flawed but chill atmospheric adventure game.
Stellaris OST
Chrono Trigger
Silent Light: https://youtu.be/YW2J96RVN64
Secret of the Forest: https://youtu.be/j6VoS1RlA6Q
Memories of Green: https://youtu.be/4iovcGjvr38
Castlevania: Symphony of the Night
Crystal Teardrops: https://youtu.be/XxEdkh4lYUQ
Final Fantasy 4
Illusionary World: https://youtu.be/rDnwn11BqzQ
Final Fantasy 6
The Phantom Forest: https://youtu.be/0F-X1uX92LM
Final Fantasy 7
Wutai: https://youtu.be/Wu4hiiJ3FBI
Secret of Mana
Rose and Ghost: https://youtu.be/24gsANNY9w0
Fez soundtrack, by disasterpeace
Pokemon soundtrack.
So msny great route and city tracks.No one has mentioned Journey yet? Wowza.
Honorable mention for Abzu as well
Back in the day when I played Anarchy Online 24/7, when it was time to sleep I used to travel to this area named Varmint Woods so I could sleep to the music and the ambience.
The music from Outer Wilds. Scintillating music for a sublime game. https://www.youtube.com/watch?v=9wSAWuhaJ4o
The Sims 1 OST. Always makes me calm and happy.