Here is the full list of all 13 Cyrano Story achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Feeling nostalgic
Finish the game on Halloween
Finish the game 7 times
You have chosen poorly
Finish the game in 79 seconds
Type 50 wrong answers
Securing The Future and Improving The Present
A distressing experience
Paranormal language skills
Auditory hallucination
Irrational suspicion
A state of intense joy
Habitual sleeplessness