Valve says that Steam has enjoyed 100 percent growth in 2011, marking the seventh consecutive year the digital retail and distribution platform has doubled its sales. In 2011 Steam’s catalogue of titles grew to 1,8000 titles and its user base grew to over 40 million. The company also claimed that 780 Petabytes of data was purchased by customers.
Over 14.5 million Steamworks-enabled games were registered in 2011, a 67 percent increase over 2010. Steamworks is included in over 400 individual titles.
"Steam and Steamworks continues to evolve to keep up with customer and developer demands for new services and content," Valve’s co-founder and president Gabe Newell said. "Support for in-game item trading prompted the exchange of over 19m items. Support for free-to-play (FTP) games, launched in June, has spurred the launch of 18 FTP titles on Steam, with more coming in 2012."
Newell went on to say that the company is looking forward to the launch of the Big Picture UI mode, which he says will allow "gamers to experience Steam on large displays and in more rooms of the house."