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