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