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