What a very interesting thread. I'd like to explain what I like in adventure games, which defines the genre for me.
I recently asked for advice on starting a new game, and, to help people help me, I made a list of the games I have played that I liked. From this list, an user from here (I think Terramax) pointed out that I liked "visually darker settings" games. I think he got it 100% right. What counts for me is the atmosphere you
feel when playing an adventure game. I also like them to be realistic because I like too feel that it could really happen to me.
Yes, I
am a bit crazy