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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. The connection method depends on which game you’re playing. Most games use Radmin VPN or port forwarding, while Plutonium clients have a built-in friends system.

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Prerequisites

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Games with Built-in Friends

Some clients handle private matches through their own friends system rather than direct IP connections.
GameHow to Connect
Modern Warfare 3 MP (IW5-Mod)Use the in-game friends list. Manage friends through the Plutonium Forums.
Black Ops 2 MP/ZM (T6)Use the in-game friends list. Manage friends through the Plutonium Forums.

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Singleplayer / Spec Ops Guides

For singleplayer or Spec Ops private matches, refer to these external guides:

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Radmin VPN / Port Forwarding

The following games require Radmin VPN or port forwarding to play private matches with friends.

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Client Port Numbers

ClientPort
IW4x28960
IW6x27016
S1x27016
BOIII27017
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?

If you need more help or support, please join our Discord.