Commemorate the joyous celebration with the hilarious video tribute above.
This fantastic piece of Valve fan art by Darren Geers casts Gabe Newell as the last free man in Half-Life 3.
We can only hope this flattering portrayal counteracts some of the Internet's fat jokes and gets the game moved back up to our lifetimes.
Valve's employee handbook (PDF) reveals that they're just as awesome to work for as you always suspected.
Strike that: work with. Here's the handbook's glossary definition of CEO Gabe Newell: "Of all the people at this company who aren't your boss, Gabe is the MOST not your boss, if you get what we're saying."
And before you ask: yes, the handbook does have a page 3.
If you're such a rabid Half-Life fan that you'd actually bite off someone's ear just for saying they'd rather see another Left 4 Dead, you may want to look away to avoid mental trauma.
Actually, just turn it off after GabeN's hilarious entrance. It's not to be missed.
Valve chief Gabe Newell is officially a billionaire, according to Forbes' latest ranking of the world's wealthiest people.
GabeN is the latest game industry figure to join Forbes' list, making his debut at #854 (out of 1,226 global billionaires), after Valve had a huge 2011 on the strength of Portal 2 and Steam.
He didn't disclose his net worth to Forbes, but he owns more than 50% of Valve. The magazine estimates that the company is worth $3 billion, by conservative estimates, which puts Newell's fortune at around $1.5 billion.