As it is a reconstructed, type of a source engine, where you can generate and alter characters and objects based on your preferences using the complex tools, you can create endless scenarios. Gmod takes you inside a virtual world which has such a captivating effect that makes you glued to the screen for hours. Garry’s Mod, popularly known as Gmod, is a free to roam sandbox physics simulation game developed and created by Garry Newman and published by Facepunch Studios.