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