Wargames have been played for centuries.
Chess - the oldest surviving wargame
Courier Chess - transitional wargames
Courier chess was first mentioned in 1202 by Wirnt von Gravenburg in Wigaloas, his Arthurian romance. Gustavus Selenus gives a detailed description of courier chess in his 1616 book Das Schach-oder Königs-Spiel.
The game is played on an 8X12 checkered board. Several additional pieces are added to the game. The game draws its name from the courier piece, which is the forerunner of the modern bishop.
People continued to play the game for about 600 years. By the earth 19th century the game seems to have died out. Starting in 1821, H. G. Albers attempted to revive the game. More recent attempts to sustain the game have met with limited success.
Kriegsspiel - the first modern wargame
Kriedsspiel, which can be translated as war game or war play may be the first modern wargame. It produced by Lieutenant Georg Leopold von Reiswitz to train officers for the Prussian army. Georg Leopold's son, Georg Heinrich Rudolf von Reiswitz, continued its development.