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