Both the demo and Patreon have Windows, Linux, and Mac versions.
:) Hello to you too and happy new year~ (sorry for the delay in response)
Daneila: I've been spelling it consistently wrong as well don't worry haha. (Someone just pointed it out to me last month lololol after 4 years lolol)
She is not in the demo, the demo is 1/30th of the game in the area of the game that is one of my favorite parts (the chase). She is in the full game though as is everyone else but the demo just shows some chasing and 1 capture with a bit of captivity to give the player an idea of what to expect.