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.
View the final credits.
Achieve 9S's ending.
Achieve A2's ending.
Watch the final moments of Devola and Popola.
Stop all resource recovery units.
Grant Pascal's final request.
Emil's shop used for the first time.
Control A2 for the first time.
Watch 2B die.
Achieve ending B.
Any weapon upgraded to the highest level.
Play your first hacking game.
Achieve ending A.
Complete the abandoned factory.
Have your body collected.
Complete the copied city.
Have 100 bodies collected.
Complete the flooded city.
255 enemies destroyed using a flight unit.
Complete the forest castle.
At least 100,000 G in possession.
Complete the alien ship.
Complete the amusement park ruins.
Complete the desert area.
Complete your first quest.
Any animal ridden for 5 kilometers.
Arrive at the city ruins.
Stare into space from the Bunker.
80% of all quests completed.
80% of all archives found.
80% of all unit data unlocked.
80% of all plug-in chips collected.
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.
Materials gathered at a hidden harvest point 10 times.
All Pods found.
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.
The place of memories has been visited.