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