Designer Castles was a pioneering software title for the BBC Micro and later Acorn Archimedes (RISC OS based) range of computers. The software produced by Data Design in Barnsley, England, UK allowed its users to design a medieval style- castle by means of a WIMP based design environment. In the design environment a number of pre-defined components, (For example, towers, walls and keeps) could be linked and manipulated to form a castle design. The components of the castle could then be printed (along with wall elevations and plans) so that a card model of the designed castle could be assembled.