XCOM: Enemy Within achievements

XCOM: Enemy Within

4.6 from 865 votes

There are 30 XCOM: Enemy Within achievements worth 1,732 (1,000)

9,880 tracked gamers have this game, 915 have completed it (9.26%)

Achievement Details

They Shall Not Pass in XCOM: Enemy Within

They Shall Not Pass27 (20)

Eliminate all alien waves

  • Unlocked by 5,606 tracked gamers (57% - TA Ratio = 1.32) 9,914  

Achievement Guide for They Shall Not Pass

819,223 (362,415)
Achievement won on 17 Nov 13
TA Score for this game: 1,417
Posted on 17 November 13 at 04:09
This solution has 11 positive votes and 0 negative votes. Please log in to vote.
Non-spoiler version: This will be shortly after the mission "Assault the Alien Base," which comes as story progression. There will be an unskippable battle later; complete this mission to earn this achievement.

Spoiler version:
*** Spoiler - click to reveal ***
There are 2 comments relating to this Solution | Please log in to comment on this solution.
Do you have a question about this achievement? Please post it in the XCOM: Enemy Within Forum

Related Achievements and Trophies