Full list of all 12 Door2:Key achievements.
The base game contains 7 achievements, and there are 2 DLC packs containing 5 achievements.
You completed chapter 2
You 0xFF32AA
You opened the temple
You completed chapter 4
You finished the game
You completed chapter 3
You completed chapter 1
You completed chapter 6
You completed chapter 5
He lived alone in the small house on a hill
You completed the Golden City
You completed Hard Room