RC4 Progress Update
RC4 will have some pretty unique features added to it, along with bugfixes, interface improvements, and balance changes. We're building a level editor for the Spring game engine- a first for the engine- and it's already working and easy to use!
We're still working on making more content for it, so that level designers can make the map of their dreams for this game engine, but we expect that when RC4 is released, we'll have enough content available for people to do their own level designs, just like any major game engine.
Here are some screenshots. The first shows the World Builder level editor in action, the rest of the shots show the levels of detail that level designers will be able to make- not in hours or days, but mere minutes: