Man, Half-Life fans must feel overly excited with all the latest news about Black Mesa: Source and Source Engine 2. And since all of us want to hear more about Half Life 3, here comes id Software’s Tim Willits who believes that Valve is currently working on Half-Life 3 and that people will be excited when they see it.

In a huge interview with Penny-Arcade, Tim Willits said:

“You know, everyone knows that Valve is working on Half-Life 3, and I think it’s fine. It will be cool when people see it, and they’ll be excited.”

And since that wasn’t enough, a line of code in one of Source’s Filmmaker files suggests that Valve is working on Half Life 2: Episode Three. This line of code reads:

“‘_CONTENT = None

def content():

”’ returns a Path instance representing the %VCONTENT% path – path construction this way is super easy: somePropPath = content() / ‘ep3/models/characters/alyx/maya/alyx_model.ma’ ”’

Add to this that a lambda icon was spotted in DOTA 2’s blog. A picture of a lambda, and the HTML alt tag for the image reads “Lambda Lambda Lambda”.

All in all, we can safely say that Valve is working on Half Life 3 (aka Half Life 2: Episode Three). Question is, when will the company officially reveal it?