Since when was the outsider incredibly sinister? He just enjoys watching the events play out, maybe poking things in some ways along the way. If you're using nonlethal methods, he'll say that he loves how you hold back and listed when others would shout out in rage. Rather than good or evil, I think he's neutral.woodaba said:Ehh...the ending was alright...much like the rest of the story. Don't get me wrong, the game is great, but the actual plot is a bit by-the-numbers, and the ending was basically the INCREDIBLY SINISTER OUTSIDER WHO'S MOTIVATIONS WERE NEVER REVEALED saying "Yeah, everything's great. Plague's cured. No, we're not going to tell you how."
As for the plague, it's only natural that it dies out eventually. Even by the end of the game, if you're playing low chaos, people are saying that there's fewer rats around, hinting that the spread is already slowing.