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