10 A Hunt BeginsComplete the third mission
10 A Perfect OrganismEncounter the Alien in Sevastopol for the first time
10 A Record of DisasterCollect an archive log
10 A Synthetic SolutionComplete the twelfth mission
10 An Outpost of ProgressComplete the seventh mission
10 AwakeComplete the first mission
10 BaitComplete the tenth mission
10 Caught in the TrapComplete the sixth mission
10 ConsultationComplete the thirteenth mission
10 End of the HuntComplete the eighteenth mission
10 Every Bullet CountsUse the revolver
10 Free the TorrensComplete the seventeenth mission
10 Hazard ContainmentComplete the eleventh mission
10 How Do You Feel?Complete the fifth mission
10 Light 'em UpUse the flamethrower
10 Power GamesAccess 10 different rewire points
10 Seegson Security BypassPerform 10 successful hacks
10 Seegson Systems ExpertComplete 10 minigames successfully
10 Self DefenseKill 10 humans
10 Shock to the SystemUse the stun baton
10 The MessageComplete the fifteenth mission
10 The MissingCollect an ID tag
10 This Should WorkUse the bolt gun
10 Throwing the SwitchComplete the fourteenth mission
10 TransmissionComplete the sixteenth mission
10 Use With Caution...Use the shotgun
10 Welcome to SevastopolComplete the second mission
10 You Shouldn't Be There.Complete the fourth mission
100 One ShotComplete the game without dying
100 SurvivorComplete the game on the hardest difficulty setting
20 A True EngineerConstruct one of each craftable item
20 Fault DetectedKill an Android
20 I Admire its PurityDetect 30 targets with the motion tracker
20 Not a ScratchEscape from android combat without taking damage
20 She's in the Vents...Use the vent system 20 times
40 ArchivistCollect all Nostromo logs
40 Hide. Run. Survive.Complete the fifth mission without being killed by the Alien
40 Just out of ReachContact your team and escape Comms without being attacked by an android
40 My Turn NowKill an android using only the maintenance jack
40 The TakenCollect all ID tags
40 Voices of SevastopolCollect 100 archive logs
5 Build to SurviveConstruct an item
50 Mercy or Prudence?Complete the game without killing any humans
50 Ripley, Signing OffComplete the game on any difficulty setting