from what i know, the 3 maps that ZMFGK found are Land of Ostarrichi's previous version.
version 1, 2 and 3 are totally different but their map name is still the same, so other people may misunderstand it.
it already has its changelog :
v3.00: incredible changes on the map
- mostly new terrain
- dozends of new items
- all new skills
- unique chooseable dungeon difficulty system
- harder bosses
- and many more features
however, the map uploader is too lazy to type description of this map about its features, systems bla bla bla
well, it's time to play back this game with a brand new look =)