Not sure why, but when I try to open the game, the window opens and then immediately shuts. Even tried running as admin, but nothing is working :(((
Firstly, to answer your question, PC!
I'm not sure what I did to get it working but i happened to give it another try and it booted up and has been working no problem! Annoying I can't reproduce the problem to help others avoid it in the future but oh well :S
Wonderful art as always and looking forward to digging into My Pig Princess further!