CCC Says: "Something is going to happen Tuesday, December 17, 2013. Do not be alarmed. Do not panic. About half of your gaming friends are going to disappear.
Just forget about them. They're gone. You won't see them in real life or online. If you send a text message or email, they won't respond. Phone calls will be ignored. Calling law enforcement to arrange a welfare check may be tempting, but is probably unnecessary. It's just a terrible side effect of both Minecraft and Terraria being released on the same day."