XCOM: Enemy Unknown achievements

XCOM: Enemy Unknown

4.3 from 3316 votes

There are 55 XCOM: Enemy Unknown achievements (50 without DLC) worth 3,891 (1,100)

60,812 tracked gamers have this game, 705 have completed it (1.16%)

Achievement Details

Secret Achievement in XCOM: Enemy Unknown

Secret Achievement37 (10)

Continue playing to unlock this achievement. (Secret)

  • Unlocked by 4,319 tracked gamers (7% - TA Ratio = 3.74) 60,872  

Achievement Guide for Secret Achievement

126,896 (70,225)
Achievement won on 15 Oct 12
TA Score for this game: 3,891
Posted on 15 October 12 at 12:07, Edited on 30 August 13 at 02:52
This solution has 44 positive votes and 1 negative vote. Please log in to vote.
Mind Control an Ethereal. Single player only.

This achievement can be quite easy if you have the proper ability's.... Along with the Officer Training School Bonus of Iron Will (The Will bonus gained during promotions increases) you can use the Psi Inspiration (30 pts.), Psi Armor (says +30 pts. but when equipped only shows +20 pts.) and Smoke Grenade with Combat Drug enhancement (20 pts.) for a huge boost to Will.

On a strong Will character (I've had one with 105) plus the 20 from Psi Armor, 20 from Combat Drugs, and the 30 from Psi Inspiration you can get close to a 50% possibility.

There are also things that will lower your Will as well so make sure that:
1. No other squad members are dead or all squad members will suffer a penalty to will.
2. The squad member you are using the psionic attack with is undamaged (full health) or he will suffer a penalty to Will. This is also the case for any aliens that are damaged, which makes hitting them with Mindfray (see last EDIT) and Mind Control easier.

I was successful in Mind Conrolling the first Etheral you meet (without the Psi Armor as its not available for research until later) with a 35% chance, Using the above abilitys and a Support Colonel with 105 will.

EDIT: I've made some small scale tests and it seems that the Mind Shield (+30 Will) currently helps immensely. Even though it says protects against enemy psionic attacks it does help boost youre own psionic attacks as well.

It also looks like the Combat Stims dont actually add any points to Will at all...

EDIT: BAD T0AST has brought to our attention that MINDFRAY (duh, why didnt i think of that) which lowers the enimes accuracy, mobility, and Will by 25, stacks with other MINDFRAY.
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