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