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