As for the uninformed decisions, you have to pay attention throughout the game. Often you'll see or hear things that you'll need to know later because they help you understand the way a Karlsson might think; this helps you with the choices. Or, you can always use save points. As far as how to win at the sub show, I have no idea because I won't play as a sub and on the dom path I declined to support Kitty in running the game show (because I always tell Kitty, "no"). Refusing to support the game show actually helps you as a dom on Veronica's path (she doesn't like the idea, either); clearly it hurts you with Alessandra and Juliette because they want you to be cruel like they are. For Dominique and Olivia, I think it depends upon whether they are running as good or evil. For most of the female NPCs, just pick the cruelest option available and they will like it.
Yeah no if there decisions are hard but there are good clues that is absolutly ok. That feels just like a riddle. But very often, especially on sub route you get basically no information at all. Maybe I was sometime just not paying enough attention that's why I asked if anybody else feels like this

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That may be (no idea; won't play as a sub) but if that's true, that goes against the developer's statements that everything that happens to Kane is consensual. From the few pictures I saw, he didn't appear to be enjoying being pegged or having dildoes shoved down his throat (again, if that's your thing, you do you).
Wait ... the developer claims that the sub path is consensual? For real? How? The whole premise of the game is that he is forced into the situation he is in. I mean if there would be a Far Cry ending like: Ok Kane, here it is, you can particiapte in this brutal game, but if you succed you can become super powerful and if you fail you will be a slave or you can simply go to this door and you are free --> Credits. Then at least participating would be his decision

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And yeah the pegging is basically always super rough, like dry insert. Not really easy to enjoy that

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But you make an intresting point. I suppose sub Kane is actually meant to enjoy being a sub to some degree. But his inner monologe is not really reflecting this very often. Even though sometimes there are decisions that make you think he actually wants to submit and serve, but even then he only seems to enjoy the more gentle stuff. And very often the decision of which kink you want to see is not a decision made by Kane but a decision made by the dommes. So yes it is the player who decides what happens. But the player is controlling more than just Kane, and Kane can't really decide what happens to him.
Absolutely.
This update was especially bad. I think it's fucking crazy for an alien to just randomly show up when the story is 70% finished. It feels so out of place. People were right when they said TQA was going to ruin KG. In 8.2 I had thought that the character Star wasn't actually real - just Veronica letting her imagination go rampant, but in 8.3 the character starts going on about eyes like the alien in TQA teaser did. And the excuse that the alien has for showing up is bizarre. One person (I assume it's Astrid) made this alien decide that the planet was worth saving. There are other people like Astrid. For example, Zoe was a sweet little girl that didn't want to hurt anyone but because her older sister wasn't Veronica, she was thrown into some tentacle monster to be eaten and digested. I hate all the characters at this point, including the morally righteous ones.
The Alien stuff really confused me ... the walkthrough also claims that the decision you make in the Olivia flashback in the old temple is actually heavily connected to some ancient deitys... All of this reminds me of Fahrenheit, one of the old Quantic Dream games if anybody here remembers that. The story there started out as a psychological thriller but then there were ancient atzec gods and the MC was going full super saiyan. Kinda ruined the story for me back then. So not sure how I feel about this here. I never was the biggest fan of more "grounded" stories going all in on supernatural stuff. But maybe all of this is used for a gigantic deus ex machina which actually changes the world to be a better place. Like a good/sub Kane who doesn't really attaches himself to anyone gets the option to free him and his friends and brings down the companys with gigantic ancient goddess of good powers

. Maybe even selfless sacrifices himself to save others, like one of the decisions in the flashback.
And about the person the alien was talking about. Is Astrid actually good? She always giving me kind of creepy vibes, can't put my finger on it but I don't trust her. Like yes she seems much nicer then her sisters, which isn't that hard

, but she still uses her familys ressources trying to save herself, even though she knows how these ressources and most of the test subjects are gathered. I know that she is involved in the revolution. But even the revolution seems like let's try to be a little bit better, but let's make sure that we still are on top afterwards, because those peasants can't rule themselves.
My first playthrough was super good sub Kane, so I actually hoped the alien meant him, giving him some agency back and rewarding him for always trying to be good in an extremly hopeless situation.
Another question: My first impression from starting the game was there are basically 4 main forks with good/evil - sub/dom. But then Olivia basically gets good/evil dom/sub too, which would make it like a lot of combinations ... and from my playthroughs the good/evil for Kane is kinda pointless on sub route ... you have basically no agency, so it doesn't seem to matter if you are good or evil. And for Olivia dom/sub seems pointless on sub route too. Olivia goes all in on domming sub Kane and tell him he is just a slave. So I understand that on dom path she can be under Kane in the end, but it doesnt change her personality after the first few episodes for sub path - correct me if I am wrong here. Maybe those stats have a big impact in the endings. But if the way to the end is basically the same, it would have been easier to just let us have a big decision in the end.