XCOM: Enemy Within

XCOM: Enemy Within is the expansion for the XCOM: Enemy Unknown strategy game. Enemy Within offers an incredible range of new abilities, equipment, and weapons to fight new enemies and aliens. This expansion pack also features new maps, new tactical and strategic gameplay, and new multiplayer content. New Soldier Abilities: Study new alien technology to evolve the skills of your agents. Genetic Modifications: Build a Genetics Lab to enhance the capabilities of your team members, including evolutions to the torso, brain, eyes, skin, and legs. New Weapons and Equipment: Give your troops a tactical advantage with new additions from your engineering team and the Foundry. New Enemy Threat: Adopt new tactics to counter the threat of two new classes of aliens, including the 'Mechtoids'. New Tactical Challenges and New Maps: New tactical challenges have been added among 47 additional maps.