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