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.
Finished the game in Duo mode.
Didn't speak during the interrogation.
Took every opportunity to be evil as Aiden.
Ordered a pizza, watched some TV and wore something casual.
Choked Philip with Aiden.
Protected Jodie from her attackers.
Did 3 mischievous things with Jodie and Aiden.
Got arrested three times and escaped each time.
Taught 3 or more of the teens a lesson, or started the house fire, with Aiden.
Launched a scene in Duo mode.
Finished the mission using only the Sheik.
Entered the Infraworld.
Found all the bonuses.
Stayed in reality.
Deactivated the Black Sun.
One possible reality has been uncovered...
Helped Dawkins see the truth.
Saved every character that could be saved.
Went to the containment shield with the General.
Told the truth during the interrogation.
Made it to the cathedral without being spotted.
Slept with Ryan.
Cooked a meal, cleaned the apartment, took a shower, wore the elegant dress and put on some music.
Started at least one romance.
Successfully performed the entire ritual.
Ran from the sandstorm and took less than 3 hits.
Forgave Jodie's father.
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.
Channeled all dead bodies in the condenser compound.
Destroyed the gas station, the church, the gun store and the helicopter.
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.
Did not impress or scare the teens with Aiden.
Shut down the monitor and finished the mission using only Aiden.
Stopped the experiment voluntarily.
Played as Aiden for the first time.