The World Tour Mode (ie., single player story) character generator is fairly robust, the story is cheesy and not very deep, but the gameplay is certainly fun. SF6 is the best SF game in quite a few years. I can certainly recommend waiting for the price to go down if you're not deep into fighting games, but it's worth a look.

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Authors of our fates
Orchestrate our fall from grace
Poorest players on the stage
Our defiance drives us straight to the edge