A free collaborative God Eater 2 DLC exists for Soul Sacrifice Delta. It opens up the Marduk as a fightable boss, whose drops are a Weapon-type offering themed after the Marduk Short Blade and an Explosive-type offering themed after its fireball toss. Additionally, God Eater-themed costumes for both male and female players can be unlocked after fighting the Marduk in SSD enough times. More information can be found at