Driven by profound regrets and seeking redemption, a band of unlikely adventurers ventures into the Gungeon, a vast and procedurally-mutating stronghold teeming with bullet-spawned enemies known as the Gundead. At the heart of this treacherous dungeon lies a legendary firearm rumored to possess the extraordinary ability to erase history itself, offering each character a chance to undo their darkest failures. Though their motivations differ, the Gungeoneers share a desperate hope that obtaining this mythical weapon might grant them the absolution they've long sought.