: Start the game and open the Mod Manager from the main menu.
: Ensure the mod file is placed in your ETS2 mod folder (usually located in Documents/Euro Truck Simulator 2/mod ). Seogi SiSL’s Custom ETS2 v230313 1.46
: Locate Seogi SiSL's Custom ETS2 and SiSL's Mega Pack in the list. Enable both, ensuring the custom mod is prioritized (placed above the Mega Pack) if required by the creator. : Start the game and open the Mod Manager from the main menu