The struggles of selling an original IP -- Sony talks LBP sales

• Gears of War 2 - 2.13 million units
• Fallout 3 - 1.23 million units
• Guitar Hero: World Tour - 1.19 million units
• LittleBigPlanet - 0.75 million units

There have been a lot of heavy hitters this season, and for PS3 owners, LittleBigPlanet was easily the biggest game of the year. Critics have heaped tons of praise for Media Molecule's innovative platformer, but how has it performed at retail?

"This is an incredibly volatile time of year and the chart reflects that," Sony's David Wilson told GI.biz. The charts have been an uphill battle for LBP, which has been struggling against the return of massive franchises. But, in spite of being an original IP on the PS3, the game has done relatively well. "LittleBigPlanet has also sold well given that this is a brand new IP ... Our industry is littered with examples of brand new innovative titles that have been lauded by the critics but have sold dismally," Wilson added. "But Sony is delighted and honored to be working with hugely talented developers who can create brilliantly creative original games."

It's unlikely LBP will be able to beat any of the other games on this list. However, Sony is still optimistic that sales will continue to rise higher due to "word of mouth."