Brian Provinciano’s open world love letter to the 8-bit era Retro City Rampage has popped up on almost every platform under the sun over the past six months, but it’s the PlayStation Network version that’s selling the best according to the developer – and, even more specifically, the PlayStation Vita release. "Indies should definitely jump onto the Vita," he tweeted. "RCR's sold much more on PSN than Xbox Live Arcade and more on Vita than even PS3."

Seeing as the Grand Theft Auto homage supported cross-buy, we’re not quite sure how Provinciano is separating the two SKUs. Perhaps he’s comparing transactions through the PS3 store to transactions through the Vita store? While the title was recently offered as a PlayStation Plus bonus, the developer added that his comments don’t include those numbers. “With PlayStation Plus, there are a bajillion more copies out there,” he explained.

The title’s even performed better on PSN than on Steam. "Steam's done far better than XBLA too, but PSN has still done the best," he said. It’s probably worth remembering that the game launched on Sony’s platform a lot earlier than XBLA in North America, which may have had an impact on the numbers. The Nintendo WiiWare version hits later today.

Still, Provinciano doesn’t believe that that’s the reason for the title’s success on Vita. “Sony promoted the game incredibly well and Vita players are hungry for games,” he exclaimed. “Make them more!” You heard the man.

[via twitter.com, twitter.com, twitter.com, twitter.com]