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