Full list of all 50 Alien: Isolation achievements worth 1,000 gamerscore. It takes around 40-50 hours to unlock all of the achievements on Xbox One.
Completed the game without dying
Killed an android using only the maintenance jack
Killed by the Alien 100 times
Killed 10 humans
Collected all ID tags
Completed the game on the hardest difficulty setting
Completed the game on any difficulty setting
Completed the game without killing any humans
Completed "Tomorrow, Together"
Completed "Desolation"
Collected 10 Nostromo logs in the main campaign
Completed "Transmission"
Completed "The Message"
Completed "The Descent"
Completed 10 minigames successfully
Navigated Reactor Maintenance without dying
Caused the Alien to retreat using a molotov
Caused the Alien to retreat by using the flamethrower
Used the bolt gun
Completed "Consultation"
Completed "A Synthetic Solution"
Used the shotgun
Completed "Hazard Containment"
Collected 100 archive logs
Detected 30 targets with the motion tracker
Completed "The Trap"
Used the revolver
Used the flamethrower
Turned off the beacon
Completed "Seegson Synthetics"
Accessed 10 different rewire points
Performed 10 successful hacks
Constructed one of each craftable item
Completed "The Outbreak"
Killed an Android
Used the stun baton
Knocked down a human or stunned an android with a non-lethal attack
Completed "The Quarantine"
Completed "The Quarantine" without being killed by the Alien
Completed "Seegson Communications"
Contacted your team and escaped Comms without being attacked by an android
Used the vent system 20 times
Escaped from android combat without taking damage
Completed "Encounters"
Completed "Welcome to Sevastopol"
Encountered the Alien in Sevastopol for the first time
Collected an ID tag
Constructed an item
Completed "Closing the Book"
Collected an archive log