Decisive campaigns: case blue is the next version of the decisive campaigns: from warsaw to Paris. The new series has a better game engine and has numerous features. it’s a strategy game with a challenging AI that can be played by all level of players, even the new ones. The new game is remarkably created and graphics are really great. This patch has updates to fix the options of weather. Now disable option would change only weather and not season. There are changes made in the rules and added an oil variant that is operated by flak troops fixing problems of some units not receiving oil supply. This update is compatible with window 8 OS.