Those of you who were paying attention back when Nintendo Gamer was a/ still afloat and b/ called NGamer, you may remember one man's attempt at creating a polygon-based version of Link's awakening.
Time passed, and you can now explore the overworld in your browser, in Unity, here: http://mithosk-games.blogspot.co.uk/2013/07/links-awakening-3d-koholint-island.html
I can't make it work for some reason, maybe you'll have better luck.