User blog comment:David Bear/Sonic's home world is in fact Mobius, not Earth/@comment-4920563-20130423185236

I kinda like calling it Mobius better. I mean it's Earth, but  at the same time, it's NOT Earth. In the Archie Comic books, Mobius is considered a future version of Earth. I think the same could be said about The game's version of the planet. It has the same qualities & the locations look similar to earth, but considering all the zones & other slightly realistic places there are on that planet, I think it's safe to say that we could call it Mobius.