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