Legend of Zelda: The Wind Waker

It's a little derivative and probably won't convert non-fans to the GameCube but it's still one of the best adventures you'll ever play.

More Info

Release date: Mar 23 2003 - GameCube (US)
Available Platforms: GameCube
Genre: Adventure
Published by: Nintendo
Developed by: Nintendo
ESRB Rating:
Everyone: Violence