Valve are working all hours under the sun to produce working versions of Half-Life Episode Two and Team Fortress 2 in time for their debut at the Games Convention in Liepzig at the end of the month.

Valve have also bought word of a new version of the Steam store and are currently looking for beta testers. If you would like to be part of the beta test you can sign up here.

Half-Life 2: Episode One debuted at the top spot on retail PC game charts across Europe, including the dominate markets of Germany, UK and France.

Episode One was released at retail outlets and via Steam on June 1st and is s the first in a trilogy of episodes that will conclude by Christmas of 2007.