Ziggurat 2 news, plus some standout Steam Festival demos in our weekly indie news round-up

We return this week with another episode of our hidden indie gems feature, and we picked a great week for to go back to the regular schedule, too.That’s because the autumn edition of The Steam Game Festival kicked off this week. This latest iteration of Steam’s popular demo festival has been live since Wednesday, and will remain so until Tuesday, October 13.The first part of this week’s column will cover new announcements/reveals, whereas the second part is all about Steam Game Festival demos you should check out while you can. We’ll never be able to cover everything (there are hundreds…