Two guys from Jersey, designer Evan Stanhope and programmer Jonathan Faulch, have embarked on a three-year quest to build the original Legend of Zelda entirely within Minecraft. And we do mean entirely.

Working two nights a week since September of last year, the friends have created the entire game world, block by block, and given players an entirely new perspective on the 2-dimensional classic. But they've gone a step further, and are now in the process of programming the game to run inside Minecraft's Adventure Mode, effectively porting the code of one game into the virtual world of another.

Polygon reached out to the team for a guided tour. This 20-plus minute walkthrough takes us all over the world of Hyrule and deep underground, to their development lab, to see how they're making it all work.

You can follow the project at their website.

This isn't the first time Polygon's Overview has wandered into the weird world of Minecraft engineering. You can take a guided tour of a working hard drive inside the world of Minecraft here. If you've got the time, maybe check out a Minecraft version of Westeros, a region from Pokemon, a city built atop a giant turtle or the entire country of Denmark.