It's not a mod, it's a map and a texture pack. I'm not a fan of mods, since they have the potential to mung up more than just Minecraft.
Here's a few comments on the project from my 6 year old:
- "When you start the game, you'll start in Hyrule castle."
- "It's kind of like a dungeon."
- "It has a village."
- "I really like it."
- "It's very awesome."
Check out the project here. Enjoy!
ps - My kids begged me to post this. Apologies to those looking for VMware information! :)