On Tuesday, Square Enix were expecting to ship around one million copies of Final Fantasy XIII to retailers in Japan, ready for the game's launch. Today, on launch day, the actual number is higher.

Square Enix boss Yoichi Wada, His Imperial Hotness, has issued a release today stating that number of units shipped was actually 1.8 million (standalone copies and those included in the "Lightning Edition" combined. That's a big jump, considering there were only meant to be 1.3 million copies available for the entire week.

The number draws the launch closer in line with that of the last game in the series, Final Fantasy XII, which had two million copies on sale, albeit for a console with a much higher install base at the time.