The Seven Doctors, an Interactive Fiction Adventureīased on the BBC TV show Doctor Who, by David Burke. (source code is in games/source/inform/69105Keys.inf) 7doctors.z5 Release 1 / Serial number 110524 69105Keys.zblorb IFDB entryĦ9,105 Keys, a one room game by David Welbourn. if-archive/ games/ zcode/ swedish 740 Items 404-Life_not_found.zblorb IFDB entry.