50 achievements for 1000 Gamerscore
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Awake
Complete the first mission
10 Gamerscore
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Welcome to Sevastopol
Complete the second mission
10 Gamerscore
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A Hunt Begins
Complete the third mission
10 Gamerscore
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You Shouldn't Be There.
Complete the fourth mission
10 Gamerscore
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How Do You Feel?
Complete the fifth mission
10 Gamerscore
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Caught In the Trap
Complete the sixth mission
10 Gamerscore
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An Outpost of Progress
Complete the seventh mission
10 Gamerscore
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Bait
Complete the tenth mission
10 Gamerscore
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Hazard Containment
Complete the eleventh mission
10 Gamerscore
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A Synthetic Solution
Complete the twelfth mission
10 Gamerscore
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Consultation
Complete the thirteenth mission
10 Gamerscore
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Throwing the Switch
Complete the fourteenth mission
10 Gamerscore
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The Message
Complete the fifteenth mission
10 Gamerscore
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Transmission
Complete the sixteenth mission
10 Gamerscore
-
Free the Torrens
Complete the seventeenth mission
10 Gamerscore
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End of the Hunt
Complete the eighteenth mission
10 Gamerscore
-
Shock to the System
Use the Stun Baton
10 Gamerscore
-
Survivor
Completed the game on the hardest difficulty setting.
100 Gamerscore
-
Ripley, Signing Off
Completed the game on any difficulty setting.
50 Gamerscore
-
Light 'em Up
Use the Flamethrower
10 Gamerscore
-
Just Out of Reach
Contact your team and escaped Comms without being attacked by an android
40 Gamerscore
-
Use With Caution...
Use the Shotgun
10 Gamerscore
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Every Bullet Counts
Use the Revolver
10 Gamerscore
-
Not a Scratch
Escape from android combat without taking damage
20 Gamerscore
-
Retreat From Fire
Cause the Alien to retreat using a molotov
20 Gamerscore
-
A Perfect Organism
Encountered the Alien in Sevastopol for the first time
10 Gamerscore
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Back Off
Cause the Alien to retreat by using the flamethrower
10 Gamerscore
-
Stunned
Knock down a human or stunned an android with a non-lethal attack
10 Gamerscore
-
Mercy or Prudence?
Completed the game without killing any humans
50 Gamerscore
-
Mind Your Step
Navigated Reactor Maintenance without dying
20 Gamerscore
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Hide. Run. Survive.
Complete the fifth mission without being killed by the Alien
40 Gamerscore
-
Not the First
Turned off the beacon
10 Gamerscore
-
One Shot
Completed the game without dying
100 Gamerscore
-
This Should Work
Use the Bolt Gun
10 Gamerscore
-
My Turn Now
Kill an android using only the maintenance jack
40 Gamerscore
-
Fault Detected
Kill an android
20 Gamerscore
-
Self Defense
Kill 10 Humans
10 Gamerscore
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Seegson Security Bypass
Perform 10 successful hacks
10 Gamerscore
-
Seegson Systems Expert
Complete 10 minigames successfully
10 Gamerscore
-
Power Games
Access 10 different rewire points
10 Gamerscore
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She's in the Vents...
Use the vent system 20 times
20 Gamerscore
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I Admire its Purity
Detect 30 targets with the motion tracker
20 Gamerscore
-
The Missing
Collect an ID tag
10 Gamerscore
-
The Taken
Collect all ID Tags
40 Gamerscore
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Archivist
Collect 10 Nostromo logs in the main campaign
40 Gamerscore
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A Record of Disaster
Collect an archive log
10 Gamerscore
-
Voices of Sevastopol
Collect 100 archive logs
40 Gamerscore
-
Build to Survive
Construct an item
5 Gamerscore
-
A True Engineer
Construct one of each craftable item
20 Gamerscore
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100 Times Too Many
Get killed by the Alien 100 times
5 Gamerscore