Update (2016-08-24): Catherine has been reinstated on the European PlayStation Network. However, it is still delisted on the Xbox Marketplace.
Catherine has been delisted from both the European Playstation Network and the Xbox Marketplace. Catherine was previously published by Deep Silver in Europe, who have recently entered into a partnership to bring Atlus and SEGA games to Europe.
A statement from the PR Manager at Atlus USA, John Hardin, has confirmed that the delisting should be unintentional, and that they are looking into it.
Deep Silver have also commented on Twitter to say that they’re looking into it.
Catherine was previously released on February 17th, 2011 in Japan, July 26th, 2011 in North America and February 10th, 2012 in Europe on Playstation 3 and Xbox 360.