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