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