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