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