I started to remodel the original Zelda A Link to the Past game a long time ago. Unlike Goddess of Wisdom this is a modification, but despite that the dungeons are quite different to solve with a lot of new tricks and hidden objects.
I was concentrating to change the gameplay as much as possible, so even a veteran of the game can easily get stuck. The game is also more difficult than the original, but still quite easy at some points. Despite the fact that this is a remodel, it still took a lot of work, specially because of the number of the dungeons. The overworld, however, is less modified, but there are a lot of barriers, that will force you to search for the correct path. A smart player will quickly see, that this is much more than just another vapid master quest.