"The Devil's Horsemen is a simulation game of the battle of Liegnitz (Poland), between the Mongol Empire and the combined defending forces of European fighters.
Desktop published containing an 11" x 17" color map, 285 color paper counters (to cut and paste), played an indeterminate number of turns until one side achieves Victory.

This is a different game from GMT's The Devil Horsemen. And it is not a previous edition of GMT's because the game system is different. GMT's uses The great battles of history system while this uses the GMT's Men of Iron system.