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