Talk:2.3 Patch/@comment-5520654-20121013193035/@comment-4632427-20121013222604

The developers have said that you get to keep everything you make during the event, which will last until at least November 1. I haven't seen whether they've clarified if it will be possible to make anything new after the event ends; there's good odds that Black Nanos will either no longer be obtainable or become much, much scarcer.