_________               (Cynbe ru Taren) 
 |         |                Citadel 2.00 
 | Citadel |                     | 
 | Family  |              (David Mitchell) 
 | Tree    |                Citadel 2.??
 |_________|                     | 
                        (Bruce King/T'an T'u) 
                            Citadel 2.10 
       _________________________/|\________________________________ 
      /          /               |               |                 \
      |     (Kerry Kyes)    (Caren Park)    (Maher Maso)      (Gary Meadows)
      |     Citadel 2.28    Citadel 2.25    Citadel 2.11        SacCit-80
      |          \______________ | _____________/ \_____            |
      |                         \|/                     \       @Asgard-80
      |                          |                      |       
      |                          |                (Bob Perigo)   
      |               __________/ \___               BabeCit    
      |              /                \                 |
  (Hue Jr.)    (David Bonn)    (ProtoSoft, Inc.)   (John Luce)
 *Citadel-86    StoneHenge         Ideatree        *CopperCit     
      |             |                                          
      |        ____/ \_________________________________       
      |       /             |             |            \ 
      |  (Grey Mouser)  (Scott S.)  (Major Chaos) (Kalen Bonn) 
      |    Commons       NeoLith      IronHenge    StoneHenge 
      | 
      \__________________________________________________ 
                 |                    |        |         \ 
          (David Parsons)             |    (Stallion)    |--(Robert Nelson) 
               STadel                 |  (Tony Preston)  |   Citadel-86/TI 
      ___________|__________          |   *Citadel-68K   | 
     /           |          \         |        |         |--(Michele & Sifu) 
   (b0b)         |     (Eric Griff)   |    (Timelord,)   |      Macadel 
  b0badel        |      STadel-Ami    |    (Cap'N Dave)  | 
         _______/|                    |      AmiDel      |--(Vince Quaresima)
        /        |\------(Elim,)      |                  |    *Citadel:K2NE
   (Ganelius)    |    (Mr. Neutron)   |  (farokh irani)--|         
  Inner Sanctum  |    @<fnord>adel    |   *Citadel-86e   |--(Gary Meadows)   
        |        |                    |                  |    *Asgard-86    
      (???)      |              (The Gremlin)            |
  *InterSanctum  |               Citadel 1.xx     (Brent Barrett)
                 |                    |             @Novucivitas            
       (Christopher Camacho)          |          _______/ \______
            Fortress-PC      ________/|         /                \
          ______/           /         |   (Jeff Waltzer)     (Jim Earl)
         /                  |         |     @OverCit           *Cit++
  (Draiden Bansted)         |         |
    Fortress-ST       (The Dragon)    |\____________________________ 
                         DragCit      \____________________         \
        ___________________/|\_________________________    \         |
       /         /          |       \         \        \    |    (Turtle!) 
    (Ray)     (Z'ton)       |        \      (Maven)     \   |     M.O.D.E. 
   TurboCit   TwitCit       |         \    *MavenCit     \  |        |  
      |             _______/|          \                  \ | (Mistress Mouse)
    (Fred)         /        |    (The Gremlin)             ||   Citadel II  
   @FredCit   (Zen Master)  |   DragCit 3.11/MSC           ||  
      |         *FrogCit    |           |                  ||  
  (Centauri)       | ______/   (Richard Goldfinder)        ||  
    CenCit         |/                 ACit                 ||  
      |           (JJ)                    \______________  ||  
   (Dargos)    *Co-Op Cit                                \ ||
   HoloCit                                                ||| 
                                                      (The Gremlin) 
                                                    GremCit 3.20/xxx 
                                                           |
                                                (Anticlimactic Teleservices)
                                                       *Citadel+
                                              
    * == Active (still developed, updated or supported)
    @ == Status unsure 
   ____________________________________________________________________  
  /                     Other Known Variants.....                      \ 
  |~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 
  | Name            , Platform   , Lang   , Author(s)                  | 
  |~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 
  |@Acropolis       , 80x86 (DOS), Pascal , Robert Bequette            | 
  | AT-Keep         , Atari 800XL, BASICXE, Brent Barrett              | 
  | Babel           , UNIX       , C      , T'an T'u                   |   
  | Citamad/Lumadel , Apple II   , BASIC  , Lum the Mad                |
  | Citadel Plus    , CP/M       , C      , Corvair                    |   
  |*Citadel/UX      , UNIX       , C      , Art Cancro                 |
  | Citadel-64      , C-64       , BASIC  , Vince Quaresima            |
  | Citadel-128     , C-128      , BASIC  , Vince Quaresima            |
  | CitSim          , WICAT      , ??     , ??                         |    
  | dars            , Z80 (CP/M) , BASIC  , err head                   | 
  | Digital Dungeon , 8088       , C, Asm , Jerry Ash                  |   
  |*D.T.J. BBS      , C64        , BASIC  , Andrew Bernhardt           |   
  |@ElfBBS          , 80x86 (DOS), Pascal , Dino Nardini               | 
  | FUBARC          , ??         , ??     , ??                         |   
  | MacCitadel      , Macintosh  , C ??   , Glen Heinz                 |   
  |@Metropolis      , 80x86 (DOS), ??     , ??                         |
  | MiniBin         , TRS-80     , BASIC  , Glenn Gorman               | 
  | NeoCitadel      , 80x86 (DOS), Pascal , Hue, Sr.                   | 
  |*NYTI            , 80x86 (DOS), C      , Ford II                    |   
  | Pseudodel       , Apple II   , BASIC  , Shadow Warrior             | 
  | squiggle        , 80x86 (DOS), Asm    , Brent Bottles              | 
  | ST-Keep         , Atari ST   , BASIC  , Andrew Studer              |
  | Titan           , Atari 800  , BASICXE, The Dragon                 |
  | Titanic         , Atari 800XL, BASICXE, Richard Goldfinder         |
  | Unidel          , UNIX       , C      , Ken MacLeod                |
  \____________________________________________________________________/





@Overcit