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