Perpetuum and all credit items are currently 33% off, including the re-introduced ICE!
A new, smaller credit pack of 200 PC is now also available for purchase. This should be useful for those who just need a few credits for extension downgrades, and don't want to purchase a larger pack.
Also check out the newest devblog for the first details on the upcoming random assignment system:
http://blog.perpetuum-online.com/posts/2014-12-18-ice-returns-first-details-on-random-assignments/