I've got to share this album by one of my favourite composers: https://shnabubula.bandcamp.com/album/cosmic-diaspora
Come for the really synthy videogamey prog rock, stay for the tonality-twisting alien landscape. No, seriously, it starts accessible and then gently gets weirder, so you can always stop if it gets too out-there. (The last track almost stopped me, but not quite – it doesn't push the obscure microtonal tunings enough to make me nope out.)
At least look at the pretty cover art. Oooh, pretty.