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