This will bypass the “Only one instance of the game can be running” dialogue.if you don’t see the hl2 folder or there’s only one sourcemod folder, this is not needed (like in Gmod’s case, it does not include any other sourcemod folder) In most cases, you will also need to specify “-game ” as most games include their own folder and hl2, or multiple games share one folder (HL2, Episodes, and HL1 Source), and an error will occur.
