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