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.
Completed all stealth training without being spotted.
Did 3 mischievous things with Jodie and Aiden.
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.
Ordered a pizza, watched some TV and wore something casual.
Finished the mission using only the Sheik.
Shut down the monitor and finished the mission using only Aiden.
Stopped the experiment voluntarily.
Saw all endings.
Let every possible character die and chose to go with them to the Infraworld.
Told the truth during the interrogation.
Went to the containment shield with the General.
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.
Forgave Jodie's father.
Was victorious in every battle with the evil entities.
Looked after Tuesday's baby, healed Jimmy and channeled Stan.
Successfully shut down the condenser portal.
Channeled all dead bodies in the condenser compound.
Entered the Infraworld.
One possible reality has been uncovered...
Found all the bonuses.
Finished the game in Duo mode.
Stayed in reality.
Deactivated the Black Sun.
Saved every character that could be saved.
Helped Dawkins see the truth.
Didn't speak during the interrogation.
Took every opportunity to be evil as Aiden.
Successfully performed the entire ritual.
Ran from the sandstorm and took less than 3 hits.
Choked Philip with Aiden.
Protected Jodie from her attackers.
Vanquished the entities with Aiden.
Deactivated the supermarket's camera.
Earned enough money to have some chocolate during dinner.
Escaped the train without being arrested.
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.