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