I don't know, adventure games on it's most pure form, are most likely to be ignored by the great public, because when we hear adventure game, most likely they'll think about is this or more recent like this one.
While I think of stuff like this before remembering that that genre was successfully rebranded Interactive Fiction (After becoming non commercially viable) due to telling a broader array of stories than merely adventure stories.
I will not contest that the Walking Dead was an excellent game...for the first three episodes at least. I believe a lot changed after the first episodes caused the game's popularity to rocket forward and Telltale decided to change the climaxing episodes to continue the series. This upsets me mainly because the last two episodes contradict the theme and characters that we grew to know intimately.
This episode's title is funny, because raising the dead is something I've been doing as of late, while catching up on Extra Credits episodes.
But anyway, I feel like I should be watching The Walking Dead, but I've never made the time to actually check it out. I'm sure it's as good as everyone says it is, but, I dunno, just haven't bothered... Same goes for the game, too, even though I've already heard a lot about it.
Saying a "genre is dead" reminds me of how I was confused by why people say "Disco is dead". I like some disco music, it feels like an early version of a lot of techno music I hear, like it has a good beat and a style to those songs. Like Dan said, something is there, and could still be, if you find what's so appealing about it.
Disco is 'dead' in that these days because no-one's willing to buy things called disco in the US since the early 80s. For some reason. So record lables and musicians trying to sell it started calling it Dance instead...