Full list of all 45 Camera Obscura achievements.
The base game contains 44 achievements, and there is 1 DLC pack containing 1 achievements.
Found every memento.
Finished the game and saw Ending A.
Finished the game and saw Ending B.
Fell all the way down a level multiple times.
Died by being crushed against a flash.
Hesitated before the Tower.
Complete 5 custom level packs from the Steam Workshop.
Took 5000 photos.
Took 2500 photos.
Took 1000 photos.
Killed two creatures at once.
Killed 100 creatures.
Killed one of the tower's denizens.
Fell onto a creature from great height.
Tried to jump on a creature.
Completed the Summit.
Earned the Silver flash medal or better on every level.
Earned the Gold flash medal on every level.
Earned the Bronze time medal or better on every level.
Earned the Silver time medal or better on every level.
Earned the Gold time medal on every level.
Earned all Bronze medals or better on each Summit level.
Earned all Silver medals or better on each Summit level.
Earned all Gold medals on each Summit level.
Finished the game and saw Ending D.
Earned the Bronze flash medal or better on every level.
Completed the Royal Quarter.
Earned all Bronze medals or better on each Royal Quarter level.
Earned all Silver medals or better on each Royal Quarter level.
Earned all Gold medals on each Royal Quarter level.
Found 75% of the mementos.
Completed the Common Quarter.
Earned all Bronze medals or better on each Common Quarter level.
Earned all Silver medals or better on each Common Quarter level.
Earned all Gold medals or better on each Common Quarter level.
Found 50% of the mementos.
Completed the Lower Quarter.
Earned all Bronze medals or better on each Lower Quarter level.
Earned all Silver medals or better on each Lower Quarter level.
Earned all Gold medals on each Lower Quarter level.
Found 25% of the mementos.
Ascend the Dilapidated Steps without crushing any slimes.
Create a custom level in the level editor.
Launched the game.
Finished the game and saw Ending C.