This is basically how Ixion went. The game didn’t need a soundtrack to go this hard, but it absolutely put it over the top.

Here’s one I haven’t seen mentioned, nuclear throne has an amazing soundtrack. Shit I gotta go play it again now lmao

First answer to me is Chris Christodoulou, who did everything for Risk of Rain and Risk of Rain 2. The man knows how to let ambient vibes build to boss music

https://youtube.com/@astronautdown

https://chrischristodoulou.bandcamp.com/

https://www.youtube.com/watch?v=V6Gzly1HGeo

For all you Life is Strange fans out there.

One of my all time favorite OSTs for indie games would be Crosscode’s OST.

All the songs that Laura Shigihara has worked on are great too.