Atom Republic have confirmed that the Alpha test build of Atom Universe will be launching on PC & PS4 next week, it will be only be available to Kickstarter backers that donated at an award level qualifying them to participate in the first game release of Atom Universe. If you qualify to participate, stay tuned next week for further information from Atom Republic. Lastly, please note that this is an Alpha build, this is a build that comes before Beta and will likely to have many bugs and features/content missing.
One slight correction about this. This will be accessible by anyone who donates at least the minimum amount required (£20 or approximately $30, depending on the exchange rate) which RebeccaWolf seems to have recently done. Thus, it is not only limited to "Kickstarter backers that donated". So this week the emails should be going out to extend the closed alpha (previously only accessible by staff and few others) to qualified Kickstarter backers and subsequent donators! YAYS!