Mass Effect 3 achievements
2,274
(1,550)

Mass Effect 3

4.6 from 9961 votes

There are a maximum of 68 Mass Effect 3 achievements (50 without DLC) worth 2,274 (1,550)

116,506 tracked gamers have this game, 13,082 have completed it (11.23%)

Achievement Details

Last Witness in Mass Effect 3

Last Witness29 (25)

Extract ancient technology.

  • Unlocked by 88,062 tracked gamers (76% - TA Ratio = 1.14) 116,506  

Achievement Guide for Last Witness

AuthorSolution
SinisterArcher
52,652 (39,510)
SinisterArcher
Achievement won on 09 Mar 12
TA Score for this game: 1,260
Posted on 10 March 12 at 08:46
This solution has 20 positive votes and 2 negative votes. Please log in to vote.
This is part of the story. You get this when you go to Thessia(Asari Homeworld). After you power up the Prothean Beacon, Kai Leng with attack you. After he steals the data and runs there is a cut scene and you get the achievement
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