XCOM: Enemy Unknown New Placeholder Achievements Hint at Expansion Category: News Archive Hits: 1853 Written by WorstUsernameEver on August 9th, 2013 Tweet View Comments XCOM: Enemy Unknown has recently got a new set of achievements with placeholder graphics and text, which seem to add fuel to the recent speculation about an expansion titled XCOM: Enemy Within. Given the project will be announced at Gamescom, we won't have to wait much longer to find out.Thanks, PC Gamer. View the discussion thread. back to top Related Games: XCOM: Enemy Unknown, XCOM: Enemy Within Prev Next