.GM81 File Extension

Game Maker 8.1 Project File

Developer YoYo Games
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What is a GM81 file?

Project file created by GameMaker, a video game development application that enables games to be created using drag-and-drop actions; may include source code as well as references to game resources, such as graphics, sound effects, and music.

More Information

Once development is complete, GameMaker projects can be built into a standard Windows executable (.EXE) file.

NOTE: GM81 files can only be opened and edited with GameMaker 8.1. Previous versions of GameMaker use the .GM6 and .GMK extensions.

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Programs that open GM81 files

Windows
YoYo Games GameMaker: Studio
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