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
Perfect play ‘Spike Hall’
Escape from the Submerged Hallway
Escape from the Painting Room
Escape from the Storage Room
Perfect play ‘Haunted Theater’
Perfect play ‘Chess’
Assisted in escaping the Frozen Courtyard ..and learned some new tricks
Invite a friend to join your game!
Escaped the Haunted Theater
Assisted in escaping the Dark Hallway ..and learned about cardinal directions
Escape from the Dark Hallway
Escape from the Frozen Courtyard ..and didn’t lose your cool
Escaped from the Dungeon ..and the dragon.
Assisted in escaping the Dungeon ..and didn’t skip leg day
Perfect play ‘The Dungeon’
Assisted in escaping the Submerged Hallway ..and became a qualified plumber
Perfect play ‘Submerged Hallway’
Perfect play ‘Painting Room’
Assisted in escaping the Painting Room ..and enjoyed fine arts
Assisted in escaping the Storage Room ..and no the answer is not a nose
Perfect play ‘Between the eyes’