The following classic DOS-based door games are available on RoadRunner X BBS, playable by clicking "connect" below (flash required.)

ArrowBridge II, DoorMUD, Kannons and Katapults, Land of Devastation, Legend of the Red Dragon, Planets: The Exploration of Space, Soli-Tree, TradeWars 2002, Two Card Poker, Usurper, and Virtual Sysop.