Here is how you install FeralHeart on Wineskin:
Click "Create New Blank Wrapper" and name it FeralHeart.
Once it has finished installing, open the FeralHeart.app and click "Install Software".
Click on the option "Choose Setup Executable" and choose the FeralHeart setup/installer.
It might crash towards the end and say it has encountered a problem, but it will most
likely work anyway. Once you have finished installing it, open the FeralHeart.app again
and let me know if it works~