"Anybody out there?" I type, but I already know it's pointless. There's nobody anywhere near me. For almost an hour, I've been wandering around a desolate plain: Gray clouds scud slowly over rough quartz mountains, while a few birds wheel in the air near mushroom-shaped trees. I never see another living soul. It feels like the end of the world.

And in fact, it is. I'm inside Asheron's Call 2, an online game that is scheduled to die in two weeks. It never acquired enough players to make it self-sufficient, so the game's owner -- Turbine -- is going to do something that only happens rarely in the world of online play: On Dec. 30, it'll flip the power off on the remaining servers, and an entire world will blink out of existence.