Complete all three training missions on Disc 0
Notice something delicate drifting through the silence...
Override the emergency lockdown and descend into the Winter Tower Basement
Discover why Parker stopped answering
Witness a gruesome scene in Marcus's Room
Pause beneath the endless stars
Find something to defend yourself with
Strike down the unseen hunter below the Winter Tower
Restore light to the silent Winter Tower
Escape an invisible stalker and slip away into the station's veins
Tamper with George's terminal and face his displeasure
Open a quiet path back into the air ducts
Break George's safeguards and revive your weapon
Silence the watcher in the vents and reach Kimberly
Search for answers while there's still someone left to give them
Gather every trace left by the Winter Tower crew
Leave the frozen tower behind
Escape the Winter Tower having killed 2 enemies or less on Normal difficulty or higher
Build an understanding of the Summer Tower lift and reach the highest floor
Break Ronny's cryptic lock
Follow Ronny's emotional trail and uncover the truth
Reunite with David and remember quieter days
Watch hope vanish in an instant
Expose the secret hidden on David's disk—and live through the consequences
Learn what the creature left inside you
Survive a desperate assault… and a stranger rescue
Gather every trace left by the Summer Tower crew
Bring life back to the Summer Tower
Descend toward the final tower
Escape the Summer Tower without killing any enemies on Normal difficulty or higher
Find a rare sanctuary within the Fall Tower and discover a parting gift from David
Put an end to the infectious horror in the depths of the Fall Tower
Flee the autumn labyrinth and return to the frozen tower
Leave Kimberly forever united with Parker
Escape the Fall Tower and reach Parker's Room without killing any enemies on Normal difficulty or higher
Escape the station on Beginner difficulty or higher
Escape the station on Easy difficulty or higher
Escape the station on Normal difficulty or higher
Escape the station on Hard difficulty
Escape the station in 2.5 hours or less on Normal difficulty or higher
Escape the station with at least 50% save battery remaining on Normal difficulty or higher
Escape the station with 100% save battery remaining on Normal difficulty or higher