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