Game server setup
Step 1: Install Radmin VPN and create a network Download and install Radmin VPN. In the main Radmin VPN window, click "Create Network".
Enter the network name, password and click "Create".
Step 2: Ask your friends to join the network Send your friends the name of the Radmin VPN network and the password to join to this network.
Step 3: Run Left 4 Dead Step 4: Add the game to the firewall exceptions You need to add rules to the firewall. Open Radmin VPN -> System -> Firewall Exceptions and add "left4dead.exe" to the exceptions.
Step 5: Enable the "Developer Console" Go to the game main menu and click "Options". Click "Keyboard/Mouse".
Click "Allow Developer Console" and set "Enabled".
Step 6: Create Left 4 Dead LAN game 1. Open the "Developer Console" by pressing "~" on your keyboard (its the key below Esc).
2. Type in the console "sv_lan 0" and press "Enter".
3. Type in the console "sv_allow_lobby_connect_only 0" and press "Enter".
4. In the console type "map" then press "Space". All playable maps will be shown.
5. Use the arrow keys on your keyboard to navigate to the desired map. Press "Enter".
Game client setup
Step 1: Install Radmin VPN and connect to the network Download and install Radmin VPN. In the main Radmin VPN window, click "Join Network". Enter the Network Name and Password and click "Join".
Make sure you and your friends are on the same network.
Step 2: Run Left 4 Dead Step 3: Add Rules to the Firewall You need to add rules to the firewall. Open Radmin VPN -> System -> Firewall Exceptions and add "left4dead.exe" to the exceptions.
Step 4: Join the game Open the "Developer Console" by pressing "~" on your keyboard (its the key below Esc) and type there the command to join "connect gameIP" (example: "connect 26.12.125.71:27015").
Troubleshooting If you can't see your friends or any servers in the game:
1. Make sure you all have the same game version.
2. Make sure you did all the steps in the instruction above.
3. Make sure you added the game to the firewall exceptions.
