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