This Saturday the 28,000 members of this Steam group are planning to play Half-Life 2 together. It's single player, of course, but there's nothing stopping fans from getting together to stroke their chins and nod slowly in mass mutual appreciation for one of the best shooters ever made.

The group hopes that the massive play session will shoot Half-Life 2 up the Steam most-played list and let Valve know how many people are still waiting for Half-Life 2: Episode 3. Valve certainly know this already, and probably receive dozens of emails every day asking "WHERE AM HL3?" but the group hopes to deliver the message in a more appreciative way.

"Instead of focusing efforts in a negative and disrespectful way, we have decided to gain Valve's attention by delivering a basic message: Your oldest and longest running fanbase would like better communication," they say on the Steam group page.

Even if you're not interested in sending Valve a message, any excuse is a good excuse to dip into Half Life 2 again, so why not join in? You can join the Call for Communication to add your weight to their message, or you can boot up and play a little for old times' sake and spend some time with Eli, Alyx and the crew. It's set to kick off at 7PM GMT / 11AM PST this Saturday. Thanks to Brett and Smash for the heads up.