Here is the full list of all 47 NieR:Automata achievements. It takes around 50-60 hours to unlock all of the achievements on Windows.
50 machine lifeforms destroyed with berserk mode.
1 hour played with 9S in a certain state.
All Pods upgraded to the highest level.
All endings achieved.
Achieve 9S's ending.
View the final credits.
80% of all archives found.
All weapons upgraded to the highest level.
Achieve A2's ending.
Watch the final moments of Devola and Popola.
Emil destroyed.
All Pod programs obtained.
Stop all resource recovery units.
Grant Pascal's final request.
80% of all unit data unlocked.
Control A2 for the first time.
Watch 2B die.
Achieve ending B.
80% of all quests completed.
The place of memories has been visited.
50 machine lifeforms destroyed by remote control.
Any weapon upgraded to the highest level.
100 machine lifeforms destroyed by hacking.
80% of all plug-in chips collected.
Play your first hacking game.
Achieve ending A.
Complete the abandoned factory.
Materials gathered at a hidden harvest point 10 times.
Complete the copied city.
Complete the flooded city.
255 enemies destroyed using a flight unit.
20 different kinds of fish caught.
All Pods found.
Have 100 bodies collected.
Emil's shop used for the first time.
Complete the forest castle.
2B's secret discovered 10 times.
Any animal ridden for 5 kilometers.
10 friendly machine lifeforms destroyed.
At least 100,000 G in possession.
Complete the alien ship.
Complete the amusement park ruins.
Have your body collected.
Complete the desert area.
Complete your first quest.
Arrive at the city ruins.
Stare into space from the Bunker.