Here is the full list of all 11 House on the Hill achievements.
The thief survived an encounter with a mad man.
The thief discovered what happened with an artist.
The thief has looked beyond the edge.
The thief found out about his past and its consequences.
Complete the game.
The thief is ready for the job.
The thief has left. Smart move.
The thief took picture of a 10 paintings.
You decided to take a deal in order to save your family.
You decided to finish what you started.
The thief has died for the first time.