Here is the full list of all 19 The Choice of Life: Middle Ages achievements.
Destroy the kingdom
Reborn 10 times
Help the Prince to imprison the Demon
Complete the trial of the treasury keeper
Cheer the King
Enter the city through the main gate
Complete the blacksmith's challenge
Get the title for the first time
Make a deal with the spirit
Get 24 titles
Get all possible titles
Reborn 30 times
Defeat the Bandit Leader
Defeat the mercenary
Enter the city through sewers
Prevent a fire in the scriptorium
Check the friendship of two friends
Read the first and second volumes of the book "The Victory of Good"
Get rid of the Demon forever