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