This is the group dedicated to crossovers with the the NieR franchise, including its latest edition, NieR:Automata. I do so very hope you don't suffer an existential crisis trying to piece the storyline together...
There are actually three games, NieR:Automata, NieR:Gestalt (normally called NieR), And NieR:Replicant. Also, NieR:Re[in]carnation but I don't know if that's counted or not.
a fact about NieR;
we need moar members