What would a game about this nigger even be about? Shadow's game still featured all the familiar characters, but Silver lives 200 years in the future, so everyone except Shadow (he doesn't age), robots like Omega, and the Deadly Six (their species lives for over 1000 years) is dead.

>To Sage: "There is no Eggman Empire in my time. This is your chance to change your ways and become a force for good!"
>To Zavok: "The evil of you long-lived Zeti endures even into my time. But no matter the time period, I'll stand against you!"

Zavok won, the Zeti will continue to terrorize the world long after Sonic, all of his friends (except maybe Shadow because he's immortal and Omega because he's a robot), and Eggman die of old age.