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