Another landmark was reached today for Valve's groundbreaking content delivery system - the developer announcing that the platform has now passed the 13 million subscriber mark. The service presently boasts some 150 games, with more major publishers set to embrace the service as a means for delivering and promoting their games via the interweb this summer.

"We've approached the of Steam the same way we treat our games; we release something we've tested, we internalise feedback, and then we release new features and functionality based upon the feedback received," beamed boss Gabe Newell.

"In Steam's case, we have millions of customers who are gamers and dozens of customers who are developers and publishers. In the past, we've added over 100 new titles from third parties, grown to over 13 million active accounts, and introduced new features such as Guest Passes and Free Weekends. This growth has taught us a lot and inspired many additional features and services that we'll be releasing later this year."

More on Steam as we get it.

By Luke Guttridge