Select mode and check the Private Session box to keep it local. Join Server: The second player goes to Network Play > Join Game . Change the filter to Search LAN . 🛠️ Option 3: Virtual LAN (For Remote Friends)
Here is how you can set up a local game without relying on Steam's online servers: Primary Method: Steam Emulators (Goldberg) how to play serious sam 3 multiplayer lan without steam hot
Set bUseSteamNetworking to False . This forces the game to use raw UDP broadcasting instead of Steam's P2P relay. Select mode and check the Private Session box
: This is often preferred over the older Hamachi. Create a private room, have your friends join, and it will simulate a physical local network. Manual Join : Once the virtual network is active, check the Network -> Join Game -> Search LAN menu in the game. Technical Troubleshooting Firewall Exceptions : Ensure you have added an exception for the Serious Sam 3 🛠️ Option 3: Virtual LAN (For Remote Friends)
: If you own the game on Steam, it is highly recommended to use the Serious Sam Fusion
Here’s a complete, step-by-step write-up to play multiplayer over LAN without using Steam (offline / cracked / legit but Steam-free setup).
In Serious Sam 3, one player hosts a "Classic" or "Cooperative" server.