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