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