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