Lunar Invaders is a Looney Pyramids game where players aim to be the first to teleport one of their ships to their home moon from an enemy moon, or eliminate all other players.
Each player has their own moon board, consisting of four factories, four control points, and a teleport pad, which they can use if they occupy two or more control points. Each player has a collection of ships represented by pyramids, which start out on their moon board. When ships are removed from the board they become available for the player to build again.
On a player's turn they choose one of the following options:
Replace a ship with one a size larger, if available;
Move a ship to an adjacent empty space;
Build a new ship if any are available at an empty factory if they occupy both adjacent control points;
Teleport from a teleport pad to a space on another moon, destroying any piece already there, if they occupy two or more control points on the moon of the teleport pad;
Enter combat with an adjacent enemy piece, larger pieces automatically replace smaller ones, but same-size pieces have the outcome determined by a die roll.
Any player occupying only one space on their home moon is eliminated from the game, along with all of their remaining ships.
The game is a redevelopment of Cosmic Coasters for Looney Pyramids.
Also included in Pyramid Arcade.