The other map I made 20 years ago, but it was left at an empty map with just multiplayer starts. I have downloaded Doom Builder 2 and finished it off with enemies, key card doors and exit. It was designed to be a Starship Enterprise not an exact layout but I've included engine areas, holodeck, bridge, officers meeting room, captains room and turbo lifts. It's different I suppose. :) Runs as Doom map E1M1 or Doomsday Engine and most likely Legacy and other engines too. Not sure what the dbs file is all about but Doombuilder 2 created it so I kept it with the WAD. Ps. It has multiplayer and deathmatch start points as well as being a single player map.