I wrote this guide as part of a trilogy of guides that includes the FO4 Testing Guide for Mods (Work in Progress) and Pack Attack NPC (PANPC) - Arena.

I outline the various features and give you reasons for using GGTS, focusing on testing of course. I also explain the holotape options and provide details on the different test areas and their strong points. Lastly I provide information on some compatibility patches and where they can be found.