Here is the full list of all 15 Shame Legacy achievements.
Meet the priest
Find the cane
Resolve the mansion puzzle
Get back to William's home
Enter the war camp
Reach the graveyard
Solve all puzzles in the game
Kill the monster
Collect all notes
Survive every encounter with the monster
Complete the game without dying
Complete the game without using the tranquilizer potion
Complete the game in under 2 hours
Complete the game twice
Fend off 5 villagers' attacks with the cane