Тем временем, Eve Online Chat, с марта будет использовать ejabberd вместо своего велосипеда.
With the March release, we’ll be updating the chat system in EVE Online, moving from the custom solution we’ve been using since EVE was initially designed, to an industry standard XMPP chat server that will offer better performance and flexibility for the future.
-- Eve Online Blog: Preparing for the future -- retirement of Eve Voice
CCP Games, создатели Eve Online: https://github.com/ccpgames/ejabberd
Ну и конечно плюсик Эрлангу.
Подробнее: https://medium.com/processone/eve-online-chat-is-moving-to-ejabberd-8e73d40fa887