Here is the full list of all 26 We Were Here achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Assisted in escaping the Haunted Theater
Play through the whole game without dying once
Escape from the Dark Hallway
Perfect play ‘Spike Hall’
Escape from the Frozen Courtyard ..and didn’t lose your cool
Escaped from the Dungeon ..and the dragon.
Escape from the Submerged Hallway
Escape from the Painting Room
Escape from the Storage Room
Invite a friend to join your game!
Escaped the Haunted Theater
Perfect play ‘Haunted Theater’
Assisted in escaping the Dark Hallway ..and learned about cardinal directions
Assisted in escaping the Frozen Courtyard ..and learned some new tricks
Perfect play ‘Chess’
Assisted in escaping the Dungeon ..and didn’t skip leg day
Perfect play ‘The Dungeon’
Perfect play ‘Submerged Hallway’
Assisted in escaping the Submerged Hallway ..and became a qualified plumber
Assisted in escaping the Painting Room ..and enjoyed fine arts
Perfect play ‘Painting Room’
Perfect play ‘Between the eyes’
Assisted in escaping the Storage Room ..and no the answer is not a nose