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