Here is the full list of all 12 The Cursed Amulet achievements.
Begin your journey
Solve the Cave Enterance puzzle
Successfully navigate the Steep Falls
Solve the Crystal Memory puzzle
Solve the Unstable Hall puzzle
Solve the Traps puzzle
Solve the Rays and Symbols puzzle
Solve the Fountain of Glory puzzle
Solve the Amulets Challenge
Find the Cursed Amulet
Check out the credits menu
Bring a gem to the end of the game