Now, the piracy debate is still prevalent in all areas ... Regardless of your own personal stance on it, Ultrakill's creator, Arsi "Hakita" Patala, believes that it's a pretty acceptable practice ...
But while piracy might be inevitable, the question remains: is it morally acceptable? I mean, sure—according to Ultrakill dev Arsi "Hakita" Patala. Just make sure you tell people if you like it.