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