: Open SmartSteamEmu.ini and set AppId = 41070 . Point the Target path to your Sam3.exe .
and replace it with the one from the Goldberg Steam Emulator package. Configure Network Identification : Ensure each player has a unique or username, often configurable via a how to play serious sam 3 multiplayer lan without steam
Use SSE only with your own legitimate game files. Do not use it to play cracked releases. : Open SmartSteamEmu