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