War Thunder is an online multiplayer combat game developed by Gaijin Entertainment. The game has a good reputation with its player-base for making nice, high quality trailers and commemorating many often-forgotten battles and historical figures important to World War II aviation. The game is modeled on a free to play system but with the ability to get almost every feature of the game without paying. This may require players complete certain challenges, or submitting user created content such as skins, or camouflage for planes. There may also be other celebratory events throughout the year such as commemorating historic figures in aviation or famous battles allowing players to win the premium currency without any expenditure. The game contains aircraft, armoured vehicles, and ships from the Spanish Civil War to Korean War time period. The full game currently contains more than 350 aircraft from 5 different nations and a number of ground vehicles from the Soviet Union and Germany. Further vehicles such as aircraft, ships, and ground vehicles (including some ground vehicles from the United States), are to be implemented later. Most maps in-game are either directly or indirectly based on real-life battles of the era.