Hi! Thanks so much for using my music and for your comment.
For this music pack I have mostly been using Impact Soundworks Super Audio Cart (it's a Kontakt instrument) plus some extra samples using the C700 synth and loading some .spc files (but I would say 80% of the sounds are from Super Audio Cart).
Feel free of course to share a link to your game here when released... I would love to share it and add it to the list of games which used my music (if you agree of course).