XCOM: Enemy Within achievements

XCOM: Enemy Within

4.6 from 782 votes

There are a maximum of 30 XCOM: Enemy Within achievements worth 1,715 (1,000)

8,892 tracked gamers have this game, 834 have completed it (9.38%)

Achievement Details

They Shall Not Pass in XCOM: Enemy Within

They Shall Not Pass26 (20)

Eliminate all alien waves

  • Unlocked by 5,145 tracked gamers (58% - TA Ratio = 1.31) 8,916  

Achievement Guide for They Shall Not Pass

747,846 (338,290)
Achievement won on 17 Nov 13
TA Score for this game: 1,402
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 ***
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