How to Add Command Line Arguments to Steam, GoG and Epic Games Store Share August 20, 2022 Dm4r Technology A command line argument is a special string of text that you can add to a game’s startup sequence for various effects. These commands can be incredibly useful, but every digital game store has a different way to access them. Read This Article on How-To Geek › Source : How to Add Command Line Arguments to Steam, GoG and Epic Games Store