From my post: "There’s no “game” in “Flax game engine” so far. What we’ve got is really a demo of our map editor, Weave. Naturally, we had to build the tools before we could build anything even resembling a game."

Before the end of the summer, we'll have a game.

The code is on github, though we haven't publicised the link. It's simply not finished, and not in a usable state yet. When it is, we'll release it properly (it's open source, under Apache, of course).