Here is the full list of all 12 Lamias Game Room achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Those who are ignorant are innocent
The origin of problem
WHO_DO_YOU_THINK_YOU_ARE
Sherlock Holmes
Owner of the room
Carnation
Unrequited love
Love and bread
Blockhead
Blood is thicker than water
Maternal love
Old glasses