The Cake maybe so; but the t-shirt certainly isn't a lie.  All it has taken is this tweet alone to send everyone who has ever heard of Half-Life into an absolute frenzy.  But the question is simple: a Valve-shaped slip of the tongue, or one of the greatest trolls of the year?

Seattle-based videogame developer Chandana Ekanayake attended a local dev event yesterday, only to see who he claims to be "a Valve employee" wearing the t-shirt above.  Over two-hundred stories and a Twitter trend later, and we'll admit it's wonderful to think about the possibility of a HL sequel again.  Please do not let us down!

Source: Twitter