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