Script Maker is a utility for creating scripts to run pre-defined commands before launching, and after exiting games with GameBox.
Some vintage Macintosh games require specific resolutions, colour depths etc. to be set, and often prompt you to do this manually, or ask for confirmation while launching. This can become cumbersome and an obstacle for younger players. GameBox can run scripts created by Script Maker to assign preset resolution/depth requirements for individual games, so these requirements are applied automatically on launch without prompting. See the documentation on Script Maker for more information.