Red Faction: Guerrilla is the third entry in Red Faction series and deviates from the first-person shooter genre that the previous two incarnations featured, incorporating an open world sandbox environment similar to Mercenaries , Grand Theft Auto , or Saints Row . Set 50 years after the events of the first two games, Mars has been liberated from the devious Ultor Corporation by Red Faction and the E.D.F. (Earth Defense Force) has stepped in to help the Miner Community get back on their feet. However, the E.D.F. has become an occupying force, taking over the planet, executing citizens and imposing martial law on the planet.
As a result, a new Red Faction element has been formed to fight the E.D.F. and once again bring peace and freedom to the Martian landscape.
The player takes control of Alec Mason, a recently arrived dissident of Earth hoping to make his new life on Mars with his brother Dan, only to be swept up in the Revolution and free Mars five sectors from E.D.F. control.
To do this, the player must complete missions and destroy E.D.F. vehicles and property, lowering their control on each sector and raising the morale of the resident population.
The missions range from story missions to advance the story and other missions including Transporter, Guerrilla Raid, Barrel Dash, Total Chaos, Rampage, Escalation, Anarchy, Team Anarchy, Capture the Flag, Damage Control, Siege, and Demolition. Players have a variety of vehicles to choose from, ranging from cars to trucks, dune buggies, dump trucks, tanks, and APCs.
There is also a plethora of weapons including pistols, shotguns, assault rifles, the sledgehammer, remote mines, anti-personal mines, rocket launchers, and the dreaded Nano Rifle.
The player can carry four different weapons at a time and can swap them out through access at their safehouses or through ammo boxes littered throughout the landscape.
Scrap is the game's currency which is obtained through completing missions or destroying E.D.F. buildings and vehicles.
The game also has an updated Geo-Mod 2.0 game engine, allowing players to virtually destroy a building realistically.
Players can use this to their advantage against enemies such as destroying the building from the ground floor, toppling it on enemies and vehicles or destroying the support structures of bridges with explosives.
The physics engine, Havok, is featured for character physics.
There is also an offline two-player mode called Wrecking Crew where two friends take turns playing a certain set of rounds to win an event.
Online multiplayer games are present as well including Anarchy, Team Anarchy, Capture the Flag, Damage Control, Siege, and Demolition.
Backpacks for the Wrecking Crew and Multiplayer modes enhance the players' abilities such as Jetpacks, Stealth, Vision (essentially an X-ray) and more power-based ones such as Concussion, which will knock over nearby enemy players and Tremor, which can damage enemies as well as structures.
The PC game comes with the DLC Demons of the Badlands included, which was previously only available for the Xbox360 and PS3 consoles.