Left 4 Dead achievements
2,846
(1,500)

Left 4 Dead

4.2 from 14031 votes

There are a maximum of 65 Left 4 Dead achievements (50 without DLC) worth 2,846 (1,500)

168,231 tracked gamers have this game, 7,624 have completed it (4.53%)

Achievement Details

Mercy Killer in Left 4 Dead

Mercy Killer17 (15)

Survive the No Mercy campaign.

  • Unlocked by 127,443 tracked gamers (76% - TA Ratio = 1.14) 168,231  

Achievement Guide for Mercy Killer

AuthorSolution
A Wise Ninja
128,564 (80,331)
A Wise Ninja
Achievement won on 12 Jul 09
TA Score for this game: 1,102
Posted on 21 December 10 at 16:55
This solution has 13 positive votes and 2 negative votes. Please log in to vote.
For this achievement you must simply finish the campaign.
You do not have to necessarily play the whole campaign as you can join one in progress and still unlock the achievement. Please note that you can die countless times throughout but on the final sequence (when you have called for rescue) if you are killed you can no longer re-join.

If you are really struggling just select the easiest difficulty and play on single player, as there is no lag and the AI you play with can often spot infected that are nearly impossible to see.
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