Instructions
Start "Earth 2150: The Moon Project" by inserting the game's disc or double-clicking the game's desktop icon. The game will automatically boot to its main menu.
Click "Multiplayer" to view the available connection types. You will be required to log into your profile, which will be your identifier when competing against other players. If you want to play matches against those on your network, click "Local Area Network (LAN)." If you want to play against other players and have an internet connection, click "Internet Games" to see a list of available games.
Double-click the name of the game you want to join. As long as there are spaces open, you will be sent to the game's lobby. Once enough players are in the match, the host will press the "Start Game" button at the bottom-right of the screen to launch the multiplayer match.