Valve has announced that Codemasters is the latest publisher to put part of its game library on Steam. Available right away is the Mercury Steam horror action game Clive Barker's Jericho, with the fantasy action adventure game Overlord from Triumph Studios and off-road racer DiRT following later this month.

Future games from Codemasters will be on Steam day and date with their retail release. The agreement only covers new and future games, older Codemasters titles will not find their way onto Steam for the time being.

"With major new content in the portfolio, Codemasters continues to expand its publishing and distribution reach," said Peter Chan, Director, Business Development, Codemasters. "As the industry's leading online platform for digital delivery of PC entertainment, Steam is a natural addition to the suite of leading platforms Codemasters is targeting with its leading new and recent releases."