River of Death: Battle of Chickamauga, September 19-20, 1863 (1999)

River of Death is the first game to take a regimental look at the last major Confederate victory, the Battle of Chickamauga -- September, 1863. Fought in dense, entangled woods, the battle was a microcosm of good plans going awry, individual units fighting away while not knowing what was happening 100 yards away, and remarkable heroic stands.

Regimental-level simulation of the Battle of Chickamauga, September 19-20, 1863, using the Great Battles of the American Civil War system. (Version 4.?)

The game scale is 140 yards per hex, and each strength point is 50 men or 1 gun. Elevations are 50 ft per level, and each turn is 1 hour of real time.