DungeonWorks uses its own locking system in order to maintain control of how we are able to design our pieces and not to be restrained by licensing agreements or the whims of any foreign entity outside of our company.
DungeonWorks sets are artistically themed and are meant to create an ambiance and certain feel in a dungeon room. While not impossible, it might look thematically strange to use multiple sets from different providers in the same room.
DungeonWorks does recognize the proliferance of the OpenLock system and that people may want to intermingle the tiles instead of setting down dungeon layouts room-by-room as they are discovered. We do provide an adapter lock absolutely free of charge that works with the majority of pieces from the OpenLock system.