Sudden Strike

This game offers the player the option to replay WW2 in a very realistic way. First you have to choose from three nations, then you go straight to the front lines.

The game is very tactics-based, as you won't be successful just by rushing in. Many details are everywhere and they are also take effect on the gameplay: Slightly damaged bridges can be repaired, ammunition is limited, soldiers can hide in houses or jump out of planes, etc.

There's also a variety of modes for multiplayers.