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