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