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.
The place of memories has been visited.
All Pod programs obtained.
20 different kinds of fish caught.
All Pods upgraded to the highest level.
50 machine lifeforms destroyed by remote control.
10 friendly machine lifeforms destroyed.
All weapons upgraded to the highest level.
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.
Control A2 for the first time.
80% of all quests completed.
80% of all unit data unlocked.
Watch 2B die.
Achieve ending B.
Any animal ridden for 5 kilometers.
Emil destroyed.
All Pods found.
Any weapon upgraded to the highest level.
100 machine lifeforms destroyed by hacking.
80% of all plug-in chips collected.
Materials gathered at a hidden harvest point 10 times.
Play your first hacking game.
Achieve ending A.
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.
At least 100,000 G in possession.
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.
2B's secret discovered 10 times.
1 hour played with 9S in a certain state.