"We're having a few remaining issues with physics and crashes that we need time to sort out before we can open up the beta. As a consequense, we will be delaying the Open Beta to later in the week. We apologize for the delay and the late announcement, but we think a more stable and playable beta is worth the wait. Further announcements on new opening time will be posted in the coming couple of days," he writes.
Working as Intended, an independent studio based in Copenhagen, Denmark, has been developing a feature set that includes skill-based progression, a fully explorable and conquerable world, complex crafting, and player cities. You can learn more about the game at the official website.
[Thanks to all the folks who alerted us to the beta news.]