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