On A.R.C.S. a planet full of resources difference factions from all over the universe are fighting to obtain control. These factions range from Humans, Robots, Aliens, Mutants and other organisms. You will need to deploy your mercenaries to the defense posts and shoot from the sidelines as the different factions attack your base. Switch weapons and and reload using the directional arrow keys. You can purchase new upgrades, mercenaries and weapons in the shop before battles. You can also repair your base health. It is up to you and your mercenaries to hold down this outpost on the planet of A.R.C.S.