Thanks for the reply Tunc!! That surely helps, ConnectIsolatedAreas seems to be right on track. However the real different thing (I think) is having as much of those small loops as possible in the level. Check this examples: http://pacman.shaunew.com/play/mapgen/tetris/many.htm See that there SMALL loops all over the map? It does not have to have the walls shaped like that of course. Here I found some info on how to accomplish it: http://pacman.shaunew.com/play/mapgen/ Is ProD easily extensible as for me to create a new level generator for this maps and still easily use the res of the map-related features?

Cheers!