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 weapons upgraded to the highest level.
Emil destroyed.
View the final credits.
Achieve 9S's ending.
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.
50 machine lifeforms destroyed with berserk mode.
80% of all unit data unlocked.
All Pod programs obtained.
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.
50 machine lifeforms destroyed by remote control.
1 hour played with 9S in a certain state.
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.
Emil's shop used for the first time.
80% of all plug-in chips collected.
Complete the copied city.
Complete the flooded city.
255 enemies destroyed using a flight unit.
20 different kinds of fish caught.
All Pods found.
Any animal ridden for 5 kilometers.
10 friendly machine lifeforms destroyed.
At least 100,000 G in possession.
2B's secret discovered 10 times.
Complete the forest castle.
Have 100 bodies collected.
Complete the alien ship.
Complete the amusement park ruins.
Complete the desert area.
Complete your first quest.
Have your body collected.
Arrive at the city ruins.
Stare into space from the Bunker.