Aces High is a combat flight simulator that utilizes a variety of World War II vintage fighters and bombers from six countries, each modeled in detail. Players can participate in sophisticated, real-time air combat against other players from all over the world. Revisions and updates are available as downloads from the Internet. (See a screenshot.) Aces High is designed to be representative of air combat through the use of real-world tactics. The game is easy to learn, but difficult to master.