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What is GB1 file?


The Game Maker Backup File (.gmb) is a file type designed specifically for backup purposes in the Creator Engine software program. This file contains all the data that was in the game before it was saved, including source code and resources.

GB1 Format details


Full Name Game Maker Backup Format
Developer YoYo Games
Category Backup Files

Tools that will help you view GB1 files


Sometimes you need to quickly preview the contents of a file with the GB1 extension. In such a situation, many people decide to find a tool that, according to its creators, can display the contents of the GB1 file and many other types of files (All in One Viewer).

Of course, there are such tools. However, it should be remembered that they may display the data contained in the GB1 file differently than the application dedicated to handling the GB1 file extension. When you cannot afford to have the data of the GB1 file displayed different from the original, you should use the applications developed to work with the GB1 file.

Below you will find a list of software programs that will help you with this. These software programs will help you view the content of the GB1 file, minimizing possible errors that may arise with other tools.


GB1 File Viewers

  • GameMaker
  • 1 GB1 viewers