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