Here is the full list of all 44 Tokyo Dark achievements.
Insanity ending
Revenge Ending
Warehouse ending
Daizo ending
Butterfly club ending
Bring Tanaka home ending
Leave Tanaka ending
Stay together ending
Save Reina ending
Mask Bearer ending
Use force to get contract signed
Use force to get information in cat cafe
Helped maids
Threaten Goto in sewer
Take a life
Use force to get information in arcade
Pick lock in police station
Knock out officer Mori
Switch off police station cameras
Suicide ending
Use cherry blossom branch in Kamakura
Run out of time in sewer
Shoot Reina in sewer
Run from sewer
Attempt to arrest Reina
Draw gun in sewer
Keep a clear head
Purification ending
Apologize in police station
Hold a hostage
Don't have the contract signed
Discover what happened to the cat food
Help girls in arcade
Respond professionally to Goto in sewer
Use force to get maids to talk
Use fire alarm in police station
Pass on Saki's letter
Shoot bamboo in Kamakura
Enjoy a drink
Arrest Ending
Cat ending