Aces High
Aces High is a massive multiplayer online game focused on World War 2 air combat flight simulation.
It also includes ground and sea warfare elements such as armored vehicles and aircraft carrier task forces.
It is my favorite World War 2 air combat flight simulator. It is both a fun and realistic game.
When I am not flying 1960s jets in Strike Fighters, I am probably flying WW2 aircraft in Aces High.
Click on either image to get more details and download this excellent flight simulator.