The first game in the series is Ardennes. The game portrays the German offensive against the western Allies in December 1944 -- the Battle of the Bulge. Each player controls the German or Allied side. When playing solo, the game system controls the other side. So Enemy Action: Ardennes is effectively three games in one box: the two-player game, solitaire playing the Allies, and solitaire playing the Germans.
- Solitaire game (with 2-player option) of the Battle of the Bulge, December 1944
- Using a diceless, card-driven system, the player plays either the German or American side thru a very touch-and-go two week time period
- 1 day/turn, rgt/div level, 2.5mi/hex, 3 countersheets, 3 maps