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.
Escaped the Haunted Theater
Assisted in escaping the Dark Hallway ..and learned about cardinal directions
Perfect play ‘Spike Hall’
Assisted in escaping the Frozen Courtyard ..and learned some new tricks
Assisted in escaping the Submerged Hallway ..and became a qualified plumber
Perfect play ‘Submerged Hallway’
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’
Play through the whole game without dying once
Perfect play ‘Haunted Theater’
Assisted in escaping the Haunted Theater
Escape from the Dark Hallway
Escape from the Frozen Courtyard ..and didn’t lose your cool
Perfect play ‘Chess’
Invite a friend to join your game!
Assisted in escaping the Dungeon ..and didn’t skip leg day
Perfect play ‘The Dungeon’
Escaped from the Dungeon ..and the dragon.
Escape from the Submerged Hallway
Escape from the Painting Room
Perfect play ‘Painting Room’
Escape from the Storage Room