From the announcement:
We're pleased to announce the rules for cybernetics and Golemmech rules are up and available to all backers for a test drive!
Cybernetic rules are streamlined and thus far have been well-received. We've been getting some great feedback on how we might make the rules more interesting.
Golemmech rules will show you how to create your own mecha. They also provide rules for focusing fire, ECM combat, golemmech combat, and much more!