I think the immediate problem you'd run into is that the name isn't very 'unusual', for lack of a better term. If anyone had a complaint, it would be Sony, as their product is roughly as similar in name, and much more widely known. (They also have additional legal steps in place, such as registered trademarks and such.)
Could you make the case that the MMORPG gameplay is based off of your work? I think with the name alone, you can't do anything about. I don't think changing your name is a good plan, since you'll lose branding, but you might want to adopt a second, more unique word as a subtitle, like: "Godwars, ____". At the very least, so people looking for you can rapidly find you by searching.
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