In Emberjack, players take on the roll of Hollows, mortals corrupted by dark magic in order to pilot the fallen Godkings' ultimate war machines: the Emberjacks.

Hollows must constantly acquire the souls of others to power their mecha and sustain their own life force — a terrible price that some are willing to pay in order to combat the legions of eldritch monstrosities and slumbering nightmares unleashed when the Godkings fell.

Players must navigate a gothic, grim-dark fantasy world filled with peril, plots, and dangerous forces vying for control of a rebuilding world; all of whom have their own plans to harness, direct, or destroy the Hollows.