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Introduction

Due to the nature of these community clients being separated from Steam’s infrastructure, you can’t add friends through Steam and join their games directly. Instead, you’ll need to connect to an active match using a VPN solution like Radmin VPN or by port forwarding.

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Prerequisites

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Client Port Numbers

ClientPort
BOIII27017
S1x27016
IW6x27016
H1-Mod27016
IW7-Mod27016
HMW27016

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Method 1: Hosting with Radmin VPN

This is the easier method and doesn’t require router configuration.

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Additional Prerequisites

  • Radmin VPN installed on all players’ computers

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Initial Setup (All Players)

1

Install Radmin VPN

Download and install Radmin VPN.
2

Allow client through Windows Firewall

  1. Go to Windows Firewall settings
  2. Click Change Settings > Allow another app
  3. Browse to your client executable
  4. Ensure all boxes are ticked, then click OK
Video guide for firewall settings
3

Create firewall rules for your client port

  1. Open Windows Firewall with Advanced Security
  2. Create both Inbound and Outbound rules for your client’s port (see port numbers above)
  3. Important: Set protocol to UDP, not TCP
Video guide for firewall rules

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Network Setup (Host)

1

Create a Radmin VPN network

  1. Open Radmin VPN
  2. Click Network > Create Network
  3. Set a network name and password
2

Share credentials

Give the network name and password to your friends.

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Network Setup (Friends)

1

Join the network

  1. Open Radmin VPN
  2. Click Network > Join Network
  3. Enter the network name and password provided by the host
  4. Click Join

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Starting the Match (Host)

1

Start a match

  1. Open the client executable (e.g., boiii.exe)
  2. Navigate to your desired mode, choose a map and start the match
2

Find your Radmin IP

  1. Open Radmin VPN
  2. Your IP will be displayed in the network list (e.g., 26.118.191.42)
  3. Share this IP with your friends
Radmin VPN IP
3

Limit player count (optional)

  1. Open the console (` or ~ key, under ESC)
  2. Type: com_maxclients X or sv_maxclients X (replace X with desired player count)
  3. Example: com_maxclients 2 for 2 players total

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Joining the Match (Friends)

1

Wait for host

Wait for the host to spawn in-game.
2

Connect via console

  1. Open the in-game console (` or ~ key)
    • On 60% keyboards: Fn+ESC
  2. Type: connect RadminIP:PORT
  3. Example: connect 26.118.191.42:27017
  4. Use the Radmin IP provided by the host and the appropriate port for your client
3

Play

Wait for the game to load and have fun!

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Need Help?

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