... last time I heard a game described as Zelda for adults was erm.... OH YEA! Darksiders! I then got one of the most disappointing games this generation. To this day the only game I ever finished then immediately went to trade in.
The only good thing about darksiders was the art style. Apart from that we got a world so barren that it makes Skyward Sword seem brimming with things. Completely forgettable bosses. One good dungeon. And a combat system that was no where near what it was promised to be.
You want to know what Darksiders actually was? Star Fox Adventures HD. Even down to the on rail shooting segments and giant rock guys who act as doors.