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.
50 machine lifeforms destroyed by remote control.
50 machine lifeforms destroyed with berserk mode.
20 different kinds of fish caught.
2B's secret discovered 10 times.
1 hour played with 9S in a certain state.
All endings achieved.
All Pod programs obtained.
All weapons upgraded to the highest level.
Emil destroyed.
Have 100 bodies collected.
10 friendly machine lifeforms destroyed.
80% of all archives found.
Achieve A2's ending.
View the final credits.
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.
100 machine lifeforms destroyed by hacking.
Achieve ending B.
The place of memories has been visited.
Any weapon upgraded to the highest level.
All Pods found.
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.
Any animal ridden for 5 kilometers.
Emil's shop used for the first time.
Complete the forest castle.
At least 100,000 G in possession.
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.