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.
100 machine lifeforms destroyed by hacking.
50 machine lifeforms destroyed with berserk mode.
20 different kinds of fish caught.
All endings achieved.
All Pods upgraded to the highest level.
2B's secret discovered 10 times.
All weapons upgraded to the highest level.
1 hour played with 9S in a certain state.
Emil destroyed.
All Pod programs obtained.
50 machine lifeforms destroyed by remote control.
Have 100 bodies collected.
80% of all archives found.
Materials gathered at a hidden harvest point 10 times.
Any animal ridden for 5 kilometers.
10 friendly machine lifeforms destroyed.
The place of memories has been visited.
80% of all quests completed.
All Pods found.
Achieve 9S's ending.
View the final credits.
Achieve A2's ending.
80% of all unit data unlocked.
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.
Any weapon upgraded to the highest level.
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.
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.
Have your body collected.
Complete the desert area.
Complete your first quest.
Arrive at the city ruins.
Stare into space from the Bunker.