Mass Effect achievements

Mass Effect

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There are a maximum of 49 Mass Effect achievements (45 without DLC) worth 2,057 (1,200)

170,746 tracked gamers have this game, 15,848 have completed it (9.28%)

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34,650 tracked gamers have this dlc pack, 30,400 have completed it (87.73%)

There are a maximum of 3 achievements worth 237 (150)

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Achievement Details

Undisputed in Mass Effect

Undisputed82 (50)

Complete Ahern's survival mission

  • Unlocked by 28,874 tracked gamers (83% - TA Ratio = 1.63) 34,650  

Achievement Guide for Undisputed

177,985 (104,009)
Achievement won on 25 Aug 09
TA Score for this game: 2,057
Posted on 25 August 09 at 14:41, Edited on 04 August 11 at 19:00
This solution has 52 positive votes and 3 negative votes. Please log in to vote.
It can be done on any difficulty:) After you complete every map with the best score you get access to this special mission. It is not really that difficult. First download the data from the thing which looks like a bomb from Eden Prime (it's somewhere in the middle of the area). After that you have to survive a 5 minute attack. Try to hide on a staircase where you started the mission. You can activate the turret there to help you. There's also a door that you can see from the staircase which you can shut (put on BARRIER and run for it:)). After 5 minutes mission ends and you get the achievement.
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