A new game should have 22 files in the save folder, after going to either Verdistis or the Dark Forest it should have 27 and after going to both it should have 32 (ie each new area adds 5 files).


Incidentally, different file extensions are associated with different areas of the game;
.0 / .x0 = Rivertown (Aleroth, Ars Magicana, etc)
.1 / .x1 = Verdistis, Council Hall
.2 / .x2 = Dark Forest
.3 / .x3 = Black Ring dungeons
.4 / .x4 = Wastelands

For example, the world.x1 file keeps track of the world (trees, buildings, etc and object directly on the ground) for Verdistis and the Council Hall. The shroud.x4 file keeps track of the fog of war above ground in the wastelands, etc.