I recently discovered the OST for the indie space sim Space Haven and I'm really enjoying it. It's a synthy, serene soundtrack on the ambient side but with a subtle touch of game music melody. I can't think of any other game soundtracks that strike that balance in quite the same way. You can find my favorite tracks in the Game Music Ambient Best and Electronic Best playlists on Spotify though at 47 minutes it's just as well to check out the whole album. Impressive early effort by relative newcomer Paul Zimmermann.

Bandcamp: https://paulzimmermann.bandcamp.com/alb … soundtrack
Spotify: https://open.spotify.com/album/4cXJbeCpYrkNOFOD5fqD0D