Item in as-new condition. Original factory seal has been removed. Some items may be carefully resealed for protection only. RESEARCH DEVELOP AND UPGRADE Configure and build rooms on the Avenger to give XCOM new capabilities on the battlefield. Use your Scientists and Engineers to research develop and upgrade weapons and armor to fit your preferred tactics. EACH MISSION IS A UNIQUE CHALLENGE Go on missions around the world from wildlands to the heart of the alien-controlled megacities to the depths of alien installations. There are virtually infinite combinations of maps missions and goals. ENGAGE IN HEAD-TO-HEAD MULTIPLAYER Mix-and-match squads of humans and aliens and battle head-to-head on randomly-generated maps.