Here is the full list of all 11 We Went Back achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Collected all clues without triggering the repeating rooms.
Finished watching the credits.
Finished one complete playthrough.
Walked through fire.
Solved the password.
Collected the Golden Record.
Took pictures of every interactable moon symbol.
Experienced all possible scares.
Collected the camera.
Inputted the password without collecting any clues or walking through any doors.
Opened the cryotube door.