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