A new agreement between Valve and Sega will see the latter's presence on the Steam online distribution network expanded.
New Sega PC games are being launched for the platform, including
Sega Rally Revo, Sega Rally, Universe at War: Earth Assault and The Golden Compass.
The two racing titles have just been made available for sale on Steam, with Rally Revo receiving prominent placement.
There's no discount from boxed versions, though, as the game is currently selling at $50.
Universe at War, a real-time strategy title where aliens play the dominating role, is slated for a December release.
The two company also announced that older titles from the Total War series will also be broadened to the European and international markets via the Steam network.