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A little over a week ago, Valve Software had changed the name of Half-Life 2: Aftermath to Half-Life 2: Episode One.
Robin Walker, a designer at Valve, confirmed to Computers and Video Games that the second episode “has been in development for some time.”
Walker also stated that “Episode One will not end with an all-encompassing conclusion.” He also stated that Valve has “to be considerate to our audience in terms of giving them what they want.”
We will keep you posted as we learn more information.