The PC gaming industry pulled in $US 10.7 billion in 2007, with only 30 percent of that coming from retail sales, the president of the PC Gaming Alliance said today.

Speaking at the Games Convention Developer’s Conference in Leipzig, Rand Stude said that online PC gaming was the top revenue earner in 2007 for PCs, pulling in $US 4.8 billion, nearly double the worldwide retail sales for PC games. Digital distribution sales approached $US 2 billion, while advertising revenues from websites, portals, and in-game ads accounted for $US 800 million.

“Our analysis clearly shows incredible growth in online PC gaming, proof that this industry is far stronger than anyone has reported,” said Stude. “Today’s consumers shop where they live – online.”

These numbers, I think, will be much more meaningful next year when we have something to compare them to. Hit the jump for the full release.