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