Here is the full list of all 17 Alum achievements.
The office chair is an office chair.
Smoky-mountain maple mighty magic mac and cheese scented. Strange, yet satisfying.
You've received a rushlight.
Wow! You beat the game without using hints!
Congratulations! You beat the game!
Off with his head!
You've reached chapter 7.
You've reached chapter 6.
You beat the sniper sequence!
You beat Dashu's Last Stand!
You've reached chapter 5.
You shared your rushlight with Pige.
You've reached chapter 4.
You've reached chapter 3.
You've reached chapter 2
You beat Colemin's Last Stand!
You have embarked on the journey of Alum.