This is the closest we have to a monster game, mostly in terms of its length. It is a strategic and operational scale game of the central European theaters of the Napoleonic Wars, with expansions to add Spain, Russia, Scandinavia, Central Mediterraneon and the Ottoman Empire (western half).
There are multiple scenarios in the game (see Scenario Booklet for full list): 1805 (vs Austria, Britain and Russia), 1806-07 (vs Prussia, Britain and Russia), 1805-1807 (vs all four), 1809 (vs Austria, Russia and Britain), 1813-1815 (vs all four), and 1815 (the 100 days of Napoleon's second reign). Some scenarios are suitable for 2-5 players. A player-turn takes about 5-15 minutes, so along with a strategic turn, a full "season" (two months is the length of a strategic turn and its associated operational turns) takes about 1.5 - 2.0 hours - less if there are no battles, more if there are many big battles.
After nearly a year on the market, some astute players have figured out how to stretch the game beyond its limits. Specifically, the Axis player can strip Italy the same turn as the British Marines get withdrawn (Spring 1941), sending all the units to the Russian front without worry of an invasion until Fall 1942. In addition, he can strip North Africa and all the rest of Europe except for five required garrisons (usually placed in Narvik, Hamburg, Paris, Greece and Warsaw. Finally, he attacks in Spring '41 which gives him a jump start.
Page 1 of 3