Here is the full list of all 23 Myth of Mirka achievements.
Tell the truth
Drink a white potion
Get locked up
Drink a purple potion
Admit to murder
Donate your body to science
Spontaneously combust
Resurrect Henri
Get executed by Super Soldiers
Find the secret military base
Defend the Town of Mirka
Kill and eat the Town of Mirka
Turn into a tree
Pray to the Gods
Find a cure for Mirkanism
Milk was a bad choice
Scream for help
Find a yeti in your bed
Throw a rock at the creature
Look in the cabin window
Feed a Super Savage
Run for several hours
Freeze to death