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