The brick-based action adventure, which is available for Xbox 360, PlayStation 3, PlayStation 2, Wii, DS, PSP and PC, has proven a big hit with gamers since its 2008 launch.
Indeed, Warner Bros states that sales of the TT Games-developed title are still strong more than a year since its launch.
The game allows players to take control of plastic versions of the Caped Crusader and his ward Robin, as they take on the likes of the Joker, Catwoman, Two-Face and the Riddler in a Lego Gotham City.
Tom Stone, managing director for the developer, said: "The team at TT Games worked incredibly hard to make Lego Batman: The Videogame a very fun experience for players.
"We are delighted to know that so many people are enjoying the game."
The Dark Knight has been well-treated by the videogame medium in the last year, having also starred in Batman: Arkham Asylum, one of the most critically-lauded titles of 2009.