XCOM: Enemy Within - Announcement Trailer

XCOM: Enemy Within takes the incredible experience of XCOM: Enemy Unknown and adds an array of new abilities, upgrades and weapons, to combat new enemy threats. The expanded experience also includes new maps, new tactical challenges, new mission types, new multiplayer content and much more – delivering more replayability, more strategy and more challenge - everything fans expect from a Firaxis expansion.
XCOM: Enemy Within, the expanded experience for last year’s award-winning strategy title XCOM: Enemy Unknown, will be available in North America on November 12, 2013 and internationally on November 15, 2013.