Memoir 44: Winter Wars
These will all be critical to fighting (and winning!) the ten scenarios this expansion contains, all focused on those crucial 2 weeks of Christmas 1944 in the Ardennes. The first six scenarios included are all standard scenarios, playable with a single base game and this expansion alone (though a Winter/Desert board will add a nice cosmetic touch to your battlefield). The four scenarios that follow are gigantic Breakthrough renditions of the Battle of the Bulge. These will require a single copy of the already released Eastern Front expansion, and the Breakthrough kit of board maps, in addition to the aforementioned expansion.
This is not a stand-alone game.