When a young student by the name of Sensou Kuraima comes across a fragment of a dead god, he is bestowed new powers and slammed facefirst into the world of the supernatural. Through trials and tribulation, he must prove himself worthy as Earth's Champion of Astrum Deus, the late God of the Cosmos! Based on the Calamity mod, unrelated to the mod of the same name.

Tsukasa Kuro was a boy he thought was like any other. However, the path he walk wasn't what he started, but it was what he continued. The Gods, Maous, Angels, Fallen Angels, Demons, Youkais, Cursed Items and many other beings surrounded him as many questions appeared. What would Kuro, or rather, Drazu do when he learn that he stood at the peak of beings? Terraria x Many!

Cthulhu used to be the King of Terraria, thanks to him defeating the Dragon Sword Spirit, Tizona, before the Martians invaded, taking his brother, the Moon Lord, before taking his life. Soon, he awakened on the world of Earth, with only a quarter of his power. Not only that, but there's a whole society of supernaturals behind the scenes to deal with! Eventual OP OC and OP Issei

The Moon Lord, Lunaris, finds himself in the world of Highschool DxD, along with his overly-affectionate Lunatic Cultist and his lovable idiot "son", Sensou the Cyborg. His brother's here too somewhere, and he must help him out by pulling some strings behind the scenes, both physically, metaphysically, and metaphorically. Companion story to Terraria DxD: Great King Cthulhu.