FSX (Microsoft Flight Simulator X) is the 10th release of Microsoft's Flight Simulator game. It includes many planes and ultra-realistic movements for the plane. It was originally realeased in 2006, and was very popular. However, it began to become out of date. Bugs, glitches and mistakes in the game became more frequent, so Microsoft decided to fix them, improve the graphics, add multiplayer and much more, and realeased the Steam edition which was published in 2014. The game includes over 24,000 airports mapped out throughout the world, realistic terrain and landscapes, and much more that you wouldn't even excpect them to remember to add to the game.