Microsoft has announced that a string of hit titles released over its five-week Summer of Arcade program helped Xbox Live Arcade (XBLA) generate record monthly revenues.

According to the company, the release of high-profile titles including Braid (pictured), Castle Crashers, Geometry Wars: Retro Evolved 2, Bionic Commando: Rearmed and Galaga Legions drove a 58 percent increase in unique members purchasing titles, while August broke the XBLA monthly revenue record by 67 percent.

"At E3, we committed to re-focusing the Xbox Live Arcade business, vowing to release bigger and better games while focusing on quality and not quantity," said Marc Whitten, general manager of Xbox Live.

"The debut of the new strategy proved to be a huge success, with the Summer of Arcade making August the highest grossing month to date. But the focus on quality games doesn't stop with the Summer of Arcade. We have plenty more great titles coming out in the next few months and beyond that we think will continue to fuel this incredible momentum."

Microsoft also confirmed that Portal: Still Alive, South Park and R-Type Dimensions are in line to hit Xbox Live Arcade in the coming months.