Если знаете букву, на которую начинается нужное расширение - выберите ее.

.GM81 расширение

Тип файла Game Maker 8.1 Project File
Разработчик YoYo Games
Категория Файлы разработчиков

Описание формата файла

Project file created by Game Maker, 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.

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

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

Программы, которыми можно открыть файл .GM81

YoYo Games Game Maker Описание