Here is the full list of all 45 Beyond: Two Souls achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Slept with Ryan.
Started at least one romance.
Successfully performed the entire ritual.
Choked Philip with Aiden.
Vanquished the entities with Aiden.
Was victorious in every battle with the evil entities.
Deactivated the supermarket's camera.
Successfully shut down the condenser portal.
Won every fight whilst taking less than 5 hits.
Taught 3 or more of the teens a lesson, or started the house fire, with Aiden.
Played as Aiden for the first time.
Stopped the experiment voluntarily.
Did 3 mischievous things with Jodie and Aiden.
Forgave Jodie's father.
Did not impress or scare the teens with Aiden.
Protected Jodie from her attackers.
Channeled all dead bodies in the condenser compound.
Completed most of the physical training successfully.
Completed all stealth training without being spotted.
Shut down the monitor and finished the mission using only Aiden.
Finished the mission using only the Sheik.
Cooked a meal, cleaned the apartment, took a shower, wore the elegant dress and put on some music.
Ordered a pizza, watched some TV and wore something casual.
Made it to the cathedral without being spotted.
Escaped the train without being arrested.
Destroyed the gas station, the church, the gun store and the helicopter.
Got arrested three times and escaped each time.
Earned enough money to have some chocolate during dinner.
Looked after Tuesday's baby, healed Jimmy and channeled Stan.
Ran from the sandstorm and took less than 3 hits.
Didn't speak during the interrogation.
Told the truth during the interrogation.
Went to the containment shield with the General.
Entered the Infraworld.
Stayed in reality.
Helped Dawkins see the truth.
Deactivated the Black Sun.
Launched a scene in Duo mode.
One possible reality has been uncovered...
Took every opportunity to be evil as Aiden.
Let every possible character die and chose to go with them to the Infraworld.
Found all the bonuses.
Finished the game in Duo mode.
Saw all endings.
Saved every character that could be saved.