Its release on seven platforms the key to success.

Ghostbusters The Video Game screenshot

According to Ghostbusters developer Terminal Reality, its recently released Ghostbusters game has already sold over a million units.

While the game may not have appeared to have set the video game charts on fire, the fact the game launched on seven platforms - not in Europe where Sony secured a timed-exclusive for its platforms - means its combined unit sales have seen the game reach the million sales milestone.

Add to this that the game still has European sales on non-Sony platforms and the game isn't looking like so much of a blockbuster bomb - the game is reported to have cost an estimated $15-$20 million.

Via Star-Telegram.com