Here is the full list of all 11 The 8th Day achievements.
Play the game for the first time.
Read you first note.
Died For the first time.
Died more times then you could count.
Unlocked more then your far share of doors.
Watched the credits.
Viewed all notes
Killed a ghost for the first time.
Close a door behind you.
Broke down a wood barricade.
Lite the place up.