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