Red Faction: Armageddon focuses on destructible environments. The player must reclaim cultist fortifications on the disaster-ravaged surface of the planet and defend colonists from hostile Martian creatures in the ancient mines and chasms beneath it and cleansing infestations from all structures. Using the Magnet Gun, Darius, the main protagonist, fires first at one object, then at a second object, and then the first object rockets toward the second. The Nano-Forge returns, having been passed down through two generations of the Mason family. Darius' father has incorporated the tool with a function that reverses any and all destruction dealt to man-made objects. The Nano-Forge will also feature an ability known as Impact, which discharges an incredibly powerful burst of force which can blow away structures and throw enemies off their feet. Darius' Nano-Forge, weapons and armor are all upgradeable, improving their efficiency, unlocking new abilities, and altering their appearances. At E3, Volition debuted the LEO exosuit, "a robotic suit with powerful weaponry whose biggest strength nonetheless appears to be its ability to crash through structures with little effort. Darius piloted the LEO at full speed through a horde of aliens, splattering them on contact, and then brought down an infested building by crashing through its walls." The game features co-operative multiplayer for up to four players, called Infestation, which features two different game modes, survival where you need to survive against waves of increasingly challenging alien attackers and defensive where you need to defend areas from attack. In a six-part YouTube series, the game's main storyline developer Leo and Max revealed "Ruin mode". This mode consists of nothing but "blowing stuff up". Players can either take all the time they want, or cause as much destruction as possible within one minute. The latter mode will have supported worldwide and friend leaderboards. However, Ruin mode will only be available to players who buy the game new or purchase a code online, as players are given the choice to either play the demo of the mode or enter a code using the methods stated above.