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