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