Here's my entry to the Ragnarok Art Contest hosted by 
My first thought was Norse runic circle, like Thor leaves behind every time he travels on Bifrost in the MCU movies. But the game is supposed to cross across all mythologies, so went with a more basic geometric design. Tried to make the material look like something between gold and bronze, maybe just a hint of Orichalcum?
Anyway, I don't have a lot of experience designing logos, but here goes!