Taken from an idea in Wargames Illustrated 191 "Shogun" by John Kersey
The year is 1215 AD. Byzantium has fallen to the Crusaders and the Middle East is a series of small kingdoms vying for control of the Holy Land. All of these petty kings wish to raise themselves to overlord of the Levant, something that historically did not occur until the rise of the Ottoman state a century later.
Each player will take one of the DBA armies below (subject to availability) and vy at first for control of a faction, Crusader or Caliphate. Armies are divided into 3 types, Crusader, Caliphate or Unaligned. Crusaders will not fight Caliphate armies until the final battle, Unaligned armies can fit in wherever. The winner of each battle will take the losing players to the next round as his vassals with a final battle fought between them all.
A deck of cards is split into red and black suits, an equal number of each based on the number of players. First the Crusader players draw a red card, then the Caliphate players draw a black card. All leftover cards are then shuffled together and the unaligned players draw. In each round you will fight the player whose card is closest to yours - i.e. the red 2 will fight the red 3 first.
This way it is possible for Crusaders to end up fighting for a Caliphate faction if defeated by an unaligned faction at some point - this represents those that faught on the other side for political reasons throughout the period.
Potentially there will be rounds with extra players (i.e. an odd number of victors). In that case the leader with the lowest cumulative victory points will be able to show up on one table as a potential ally for either side but with no more than 1/3 of each of his forces (as per the DBA campaign rules) with the hope of gaining enough points on the winning side to not be just an ally in later games.
The winner is the CinC of the winning command in the last battle
Later Crusader: 1 Kn General, 2 Kn, 1 Cv or Kn, 5 Sp, 3 Bw
Lusignan Cypriot: 1 Kn general, 1 Kn, 1 Cv or Kn or LH, 4 Bw, 2 Sp, 2 Ps, 1 Hd or LH
Romanian Frank: 1 Kn general, 4 Kn, 3 Cv, 1 Bw, 1 Sp, 2 Ps
Seljuk Turk (Rum): 1 Cv General, 1 Cv, 1 Kn, 6LH, 1 Sp, 1 Bw or Ps, 1 Ps or Bw or Ax
Seljuk Turk (Other): 1 Cv General, 1 Cv or LH, 8 LH, 2 Ps or Bw or Ax or LH
Syrian: 1 Cv General, 3 Cv, 3 LH, 1 Wb, 1 LH or Wb or Ax, 2 Ps, 1 Hd
Ayyubid: 1 Cv General, 5 Cv, 2 LH, 1 Ax or Wb or Hd, 2 Bw or Ps, 1 LH or Ps
Kwarziman 1 Cv general, 3 cv, 4 LH, 1 LH or El, 1 Bw, 1 Cv or Hd, 1 Wb or LH
Georgian: Cv General, 3 Cv,4 LH,2 Sp, 2 Ps, 3Bw
Cuman: 1 Cv General, 9 LH, 1 LH or Cv, 1 LH or Hd or Ps
Cicilian Armenian: 1 Kn General, 2 Kn, 6 Ax or Sp, 3 Ps
Later Bulgar: 1 Kn general, 3 Kn, 6 LH, 1 Sp or LH, 1 Ps or LH
Nikaian Byzantine: 1 Cv general, 1 Cv, 2 Kn, 4 LH, 1 Sp, 1 Bw, 2 Ps
Epriot Byzantine: 1 Cv general, 2 Cv, 2 Kn, 2 LH, 1 LH or Kn or Ps, 1 Sp or Ps, 3 Ps or Bw
Trapezuntine Byzantine: 1 Cv general, 1 Cv, 2 LH, 1 sp, 3 Ps, 2 Ax, 2 Bw