Six months after Armored Core: Nexus ends, two powerful groups, the Alliance and the Vertex, are fighting for world dominance and victory hinges upon the "Raven" pilots. You are a Raven, an elite mech warrior who must choose sides between the fighting powers. Ravens face the ultimate decision in the fight for survival, either to fiercely defend their chosen side or fight alone and face the wrath of all Ravens.

Developed by FromSoftware, the Armored Core series enables players to customize their Core Units with a virtually unlimited variety of options, parts and weapons. Armored Core: Last Raven continues that tradition, but with improved gameplay effects, including for the first time mechs that continue in battle even after losing an arm, leg or head.