The Legend of Zelda: Parallel Worlds (SNES)
A very interesting Zelda ALTTP Hack
Allright, this isn't really a homebrew, but it deserves to be on the front page. Our comrades at RomHacking have published a splendid hack of The Legend of Zelda - A Link to the past, the famous SNES game. This hack is basically, well... a whole new Zelda game.