The School of Video Game Audio has made a new Pd game audio project available for download that combines Open Sound Control (OSC) with Unity to trigger sounds in Pure Data. Downloading Unity isn't required as standalone versions for Mac and PC are available but a recent version of Pure Data is necessary. The project has over 20 synth patches plus a generative music patch to generate all of the audio for the game using synthesis.
Quick video overview: https://twitter.com/SchoolGameAudio/status/941477419898114048
The download is available on the school's web page at: School.VideoGameAudio.com.