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