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