While Capcom shut down the US online servers for Outbreak on December 31, and the JP servers on June 30, 2011, fans have created a replacement server for the JP version. The server was reverse-engineered by capturing the information communicated between the game and the server while it was still running. However, because the different regions used different matchmaking services, and packets were only captured for the JP version, they have not been able to create a server compatible with the US version of the game.
Contributed by Mass Distraction