It doesn't really work. You run around and collect random stuff to gain points, and that's it. Doesn't have any fun gameplay and/or mechanics to be worth playing with friends. Stealth doesn't work, citizens always see you, guard AI will follow your position whether they see you, are alerted or nothing of the above. But that doesn't really matter as guards can't do any harm. And NSFW part is just your character being naked and MAYBE you can find a "partner" so you can watch a couple of animations to get points.
Right now it is not worth it, but maybe future updates will bring something comprehensible.
Right now it is not worth it, but maybe future updates will bring something comprehensible.