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Space Shuttle Mission 2007, also SSM2007 is a highly realistic Space Shuttle stand-alone mission simulator for the Microsoft Windows XP and Vista operating system. The simulator was released on January 1, 2008 after having been under development for more than six years. Space Shuttle Mission 2007 has been developed by a team of Space Exploration enthusiasts whose idea was to bring the old and venerable Virgin Shuttle Simulator alive again and match the new PC technology by re-designing a new Space Shuttle simulator from the ground up and adding better graphics and more features. The team planned to develop Space Shuttle Mission 2007 as a freeware game, but as the project became more ambitious and significant resources had to be invested to meet the new design requirements, the team decided to release the simulator as a commercial indie project. Source: *****