The earthling base holds a perimeter defense among the dangerous Martian wastelands in the real-time strategy Mars Invasion. Build mining mines, power defensive laser turrets from reliable power plants, build strong walls, and research advanced technologies to hold back endless hordes of sand bugs. Send demolition squads to explore the foggy sectors of the map, ruthlessly burn down discovered monster nests in eight stages, and defend the outpost from the final assault in Mars Invasion.