If you go to the official website for the game Infinity Nikki, where the pic is taken, and look to the left of what the OP cropped, there is a standalone Windows download. You can just download the game.
The game is F2P so while it’s not some big accomplishment to pirate like you’re implying, it is almost certainly loaded with predatory monetization.
Do consume other media like books, TV, or movies?
Why post on a games forums when you have such open disdain for the medium and gamers?