Also a free classic WWII wargame, a remake of "Steel Panthers". The last few links for SP WAW (Steel Panthers, World at War) 8.20 FULL are free downloads of the whole game! The "General's Edition" is the one that's for sale, includes some added campaigns and etc, however the free one is a great classic wargame, and was Matrixgames' entry into the wargaming genre. I really do recommend this one, it's a classic that's been around for quite some time.
Matrix Games - Steel Panthers: World at War - Generals Edition - Downloads