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