Killed 10 humans
Completed the game on any difficulty setting
Completed the game without killing any humans
Completed "Tomorrow, Together"
Completed "Desolation"
Completed "Transmission"
Collected 100 archive logs
Completed "The Message"
Completed "The Descent"
Completed 10 minigames successfully
Used the bolt gun
Completed "Consultation"
Completed "A Synthetic Solution"
Completed "Hazard Containment"
Killed an android using only the maintenance jack
Used the shotgun
Completed "The Trap"
Caused the Alien to retreat by using the flamethrower
Constructed one of each craftable item
Caused the Alien to retreat using a molotov
Accessed 10 different rewire points
Used the flamethrower
Turned off the beacon
Detected 30 targets with the motion tracker
Used the stun baton
Completed "Seegson Synthetics"
Knocked down a human or stunned an android with a non-lethal attack
Performed 10 successful hacks
Completed "The Outbreak"
Completed "The Quarantine"
Completed "The Quarantine" without being killed by the Alien
Used the vent system 20 times
Completed "Seegson Communications"
Escaped from android combat without taking damage
Killed an Android
Used the revolver
Completed "Encounters"
Encountered the Alien in Sevastopol for the first time
Completed "Welcome to Sevastopol"
Collected an ID tag
Constructed an item
Completed "Closing the Book"
Collected an archive log
Completed the game on the hardest difficulty setting
Collected all ID tags
Collected all Nostromo logs
Contacted your team and escaped Comms without being attacked by an android
Navigated Reactor Maintenance without dying
Killed by the Alien 100 times
Completed the game without dying