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