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