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