On opening day, Demon's Souls sold 23,000 copies. Though 23,000 seems like a paltry number, the title's first shipment has been completely sold out. From Software is a smaller Japanese developer, which may attest to the small shipment. Their most recent games, the 360 exclusive Ninja Blade and the Wii exclusive Tenchu 4, both charted less than 10,000 copies opening day. Japanese retailers greatly underestimated the demand for the game, and new shipments aren't due until next week.