Anyone else noticed all the references to other systems seems to point to: "He who fights with Monsters", "Defiance of the Fall", "Primal Hunter", "System Universe", etc...?

Haha, yes! I noticed quite a few of those references as well, like “He Who Fights with Monsters” and “Primal Hunter.” Seems like Oswald is giving a nod to the LitRPG community.

Which one did you notice first, or did any of them make you think “oh, I know that system”?