To join your Return to Moria Server, you'll need to use a join code that you can get from the control panels web console, it is possible to use the IP/Port of your game server too via advanced options.
Step 1: Start your server
Make sure your Return to Moria server is running.
Step 2: Open Web Console
Click Web console from the left side menu to open the live server log.

Step 3: Copy the Join Code
Locate the join code in the log and copy it. This is what players will use to connect.
Step 4: Launch the game and click Play
Open Return to Moria, click Play, then choose or create your character.
Step 5: Join Other World
Once your character is ready, click Join Other World and paste in the join code.

Optional: Use Advanced Join Options
If you're joining without a join code, use Advanced Join Options with the IP:PORT and password from your panel's connection info.

If the server does not appear
Confirm the server is online in the control panel, then refresh the in-game browser. Server lists can take a few minutes to update after a restart. If direct connect is available, use the server IP and port from the control panel.
Connection checks
Make sure your game client is on the same branch or version as the server. Mods, passwords, and whitelist settings can also prevent a successful connection.