Oceanhorn is literally just Zelda, but worse in every way. There's not a single thing in the game where you can say, well, it's Zelda, but at least it does this one thing in a way that makes it worth playing. No, it's just The Wind Waker, but with worse combat, graphics, puzzles and story.
The only way I could see it being worth playing is if you've never played a Zelda game and don't know any better.