I've checked in code that does automatic map tiling. Much more changed than just the addition of map tiling. There are some sample maps I made to test it out. They are link back to the main city, but I did not check city map that links to them. Following is the necessary link: arch house_2 name map tiling demo slaying /test/tile1 hp 7 sp 13 x 27 y 16 end There are some areas which almost certainly need to be improved on with the tiling code. At minimum, the monster logic probably won't work really well (monsters on a tiled map won't know about the player on the next tiled map over, and so will probably just stand around and do nothing). But I have done some testing, and at least with non tiled maps (which is currently everything but the sample maps), the code should hopefully be no less stable and have no more bugs than the old code did. the java editor certainly needs to be modified to know about the new map fields. crossedit knows about them, and will preserve the values, but have no way to modify them (for my sample maps, I created them in crossedit, but put in the tiling information by hand).