What may be one of the most anticipated unannounced games of all time is without a doubt Half-Life 3. Some fans of the series are clamoring that the next game in the series will be Half-Life 2: Episode 3 but that's unlikely considering what Valve's Gabe Newell said about stopping episodic content.

Half-Life 2: Episode Two debuted in 2007 as the second expansion to 2004's Half-Life 2, a game that suffered from lengthy delays. What we're trying to say is that it's simply been too damn long since we've played a new Half-Life game and all we've gotten instead in recent years is rumors and teasing.

There was a glimmer of hope that Valve could surprise us big at E3 2011 but they weren't taking appointments to demo anything and in the end, still no Half-Life 3. In September, someone found what looked to be Half-Life 2: Episode 3 weapon code in the DOTA 2 beta client but that made little sense.

Maybe this latest rumor offers legitimacy towards Half-Life 3 or Half-Life 2: Episode 3 being on its way:

Nope. It's just a T-shirt. This image comes from Twitter user @Ekanaut (Chandana Ekanayake), an employee of Monday Night Combat developer Uber Entertainment, who claims he saw a Valve employee wearing this shirt.

What does this mean? Nothing. We don't know who it is, we don't know if this t-shirt is from Valve or ordered from one of the million graphic tee manufacturers online. Also, it appeared at a gaming event so it was intentionally worn for fun. What we do know is the game still hasn't been announced but that it's inevitable that it'll come eventually.

Since Half-Life 2 debuted, Valve has crafted a pair of Left 4 Dead games, a pair of Portal games, while creating and growning Steam into the ultimate source for PC game purchases. Despite all of that, Half-Life is still the flagship franchise and everyone in the industry needs to see Gordon Freeman return.

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Follow me on Twitter @rob_keyes.