- Login to your control panel.
- Copy the Query IP/Port listed.
- Open Steam, then at the top of the window click View, then Servers.
- Click onto the Favourites tab, then click add server.
- Paste in your servers Query IP/Port.
- Open the game, and filter your list by favourites.
- Click join, and enjoy.
You are also able to use the Connection IP/Port (seperated by a colon) and paste them into the bottom of the multiplayer window, then click connect.