The game Transistor has an amazing dynamic soundtrack, which can be extracted from an Fmod sound bank in the game files. Here are all the songs, split up so you can mix the stems as you like! I added eveything that was in the "music" folder, which also included a few stingers.
The Fmod bank was extracted a long time ago, apparently using Fmod Bank Tools which looks sketchy as hell, so I'd recommend running it in a sandbox. I'm pretty sure there are other more modern alternatives available nowadays. You can also get all the SFX, ambiance tracks and voice lines in the same way.
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State: Idle
Master volumeSong
Tap/click to seek in the waveforms