The free downloads include rules for a Medical Pod, a handy device in Cold & Dark. Apparently these rules were ready in time for the core book, the image for it is in the book but somehow never featured. Now’s a chance to grab them.
There’s also two page avatar interface and a draft of the new Sirius Galaxy map. The map is made by Tobias Tranell and will feature in Better Worlds sourcebook.
If you’re visiting this page a while after it was originally posted then these links may have broken. You can try wicked-world.se/download to see if the content is still available but at a new URL.