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