This page contains X-Com: Enemy Unknown Unlockables for Xbox 360 called "Secret Achievements" and has been posted or updated on Dec 3, 2012 by SmartmanV8.
- Developer: Firaxis Games
- Publisher: 2k Games
- Genre: Strategy Turn-Based
- Release: Oct 9, 2012
- ESRB: Mature
Complete one of the following Secret achievements to collect their Xbox Live Gamerscore points:
|Unlockable:||How to Unlock:|
|And Hell's Coming With Me (10 GP)||Successfully assault an Overseer UFO.|
|Angel of Death (10 GP)||Eliminate an alien while flying. Single player only.|
|Beyond the Veil (10 GP)||Locate a soldier with the Gift.|
|Flight of the Valkyries (10 GP)||Win a mission with an all-female squad. Single player only.|
|Meet New People. Then Eliminate Them. (25 GP)||Win a multiplayer match.|
|Off My Planet (25 GP)||Recover the Hyperwave Beacon.|
|On the Shoulders of Giants (10 GP)||Build the Gollop Chamber.|
|Poison Control (10 GP)||Cure poison on five soldiers in a single mission. Single player only.|
|Prisoner of War (10 GP)||Capture a live alien.|
|Ride the Lightning (10 GP)||Build a Firestorm.|
|See All, Know Every (10 GP)||Build the Hyperwave Relay.|
|The Gatekeeper (10 GP)||Stun an Outsider.|
|The Volunteer (10 GP)||Make contact with the Ethereal hive mind.|
|X Marks the Spot (10 GP)||Uncover the alien base's location.|
|Xavier (10 GP)||Mind Control an Ethereal. Single player only.|
Please Submit a Problem for any incomplete, non-working or fake cheat listed above.
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