Chess game saved with Apple Chess, the chess program included with Mac OS X; saves the match progress so that the game can be opened and resumed at a later time; may also be used to test different strategies from a certain point in the game.
Game file created by GameSalad Creator, a program used for building games for iOS, Android, and the Web (HTML5); saves a packaged video game exported in the software from a .GAMEPROJ project file; created by choosing File → Export to iPhone from the GameSalad application menu.
GAME files are used for uploading GameSalad projects to the GameSalad website, which converts the file into an Xcode project (.XCODEPROJ). Since Apple requires that apps be submitted using Xcode, this is a necessary step before developers can submit GameSalad apps to the iTunes or Mac app stores. GAME files themselves cannot be run, and are only used for conversion to Xcode.
NOTE: GAME files are .ZIP files that use the ".game" extension.