Heroes of Might & Magic III: Horn of the Abyss

Then it would be better to place the land in the Dungeon (lower level) and simply edit the land to resemble the sky and place it on the ground (upper level): as a result, we still have the same 2 levels of land!

And regarding the Ice Palace – why not make it an experience reward? Just don't make the experience requirement too high, that's what I'm saying... 20K would be enough in my opinion!