You may need to disable other network adapters (like VirtualBox adapters) to ensure the game uses the correct LAN IP. 3. Dedicated Server Tool
Select the game and join.
Works perfectly – but expect some tinkering Rating: ⭐⭐⭐⭐☆ (4/5)
Note: Serious Sam 3 is generally a 32-bit application, so the steam_api.dll is usually the target file.
: Disable Windows Firewall or add an explicit exception for the game's executable ( Sam3.exe ) to allow incoming and outgoing traffic.
You may need to disable other network adapters (like VirtualBox adapters) to ensure the game uses the correct LAN IP. 3. Dedicated Server Tool
Select the game and join.
Works perfectly – but expect some tinkering Rating: ⭐⭐⭐⭐☆ (4/5) how to play serious sam 3 multiplayer lan without steam
Note: Serious Sam 3 is generally a 32-bit application, so the steam_api.dll is usually the target file. You may need to disable other network adapters
: Disable Windows Firewall or add an explicit exception for the game's executable ( Sam3.exe ) to allow incoming and outgoing traffic. how to play serious sam 3 multiplayer lan without steam