Lock On: Modern Air Combat is considered as a survey simulator by its creators. It contains 8 flyable aircraft and over 40 non-playable/AI-controlled planes. The game mainly revolves around air-to-air combat and air-to-ground combat with some optional, unique roles such as pinpoint/anti-radiation strikes, anti-ship strikes or aerobatics. The game realistically models all aspects of take-off and landing, AWACS (also known as AEW&C), carrier-based landings (for the Su-33), and aerial refueling.
SU-27 is a deep, challenging and extremely accurate sim starring one of Russia's premiere fighters in a variety of missions set in Crimea.