I will have to listen through it on youtube. It seems to have that light, vangelis-y feel. If you like that kind of music and retro graphics, check out Knytt Stories. Very nice music, free download, and the Design Tour video should convince you it's worth your time. The author even played the acoustic guitar for the soundtrack.
https://www.youtube.com/watch?v=YpnGL3ggGFkI just realized something else about Into The Breach music. It could be put into many, many other games, and wouldn't feel out place. I mean swap it with Age of Wonders III, Hyper Light Drifter, Baldur's Gate, Nuclear Throne, Catacomb Kids, Rimworld, EVE Online, Homeworld, a Total War game, Samorost, Machinarium, The Witcher, Far Cry, Grim Dawn, Dark Souls, Cave Story, Bioshock, System Shock, Dishonored... I can't imagine it in Starcraft, a racing game or Day of the Tentacle, but otherwise it's the kind of music people say goes well with anything.
I really think the music is weakest part of the game. Pixel art is very good, design/game mechanics are excellent, interface deserves the praise. It's a very good game but I think they're just good at PR (self-promotion), like the guy from Ultima Ratio Regnum. He's good at procedural generation and wrote a few scientific papers (and RPS articles), but he doesn't seem to have ever released a game. URR will probably end the ultimate vapourwave. Game design and screensaver design are two different things.
Certainly self-promotion is a very beneficial skill to have and I can learn a lot from these guys.