"Flight Simulator X: Acceleration Expansion Pack" is the action-filled expansion pack for Microsoft Corp.'s amazingly successful and award-winning "Flight Simulator X" video game. With "Flight Simulator X: Acceleration Expansion Pack" gamers of all ages, types and skill levels can race against friends in amazing, highly detailed locations around the world, test their skills and heroism in many new missions, fly three exciting new aircraft, and share rewards, photos and videos with friends and the broader flight community.