Galactic Frontiers is a strategy game for one to four players, where each player is a contender vying for supreme power over the galaxy. Starting from a single base planet, players invade neighboring planets by moving ships to those planets. Most planets will be occupied by other forces, either neutral or those of opposing players. Having moved one or more ships to a neighboring planet, the computer will determine whether any ensuing battles are won or lost and the players are informed of the result at the commencement of the next turn. (Note: Galactic Frontiers is not MacOS 8.5 Themes compliant. Galactic Frontiers is a MacOS Classic application, but is fully compatible with Classic emulation under MacOS X)