There are some 3rd party voxel programs like Voxelform on the asset store, however, the person making Voxelform stopped updating, so that program's pretty much dead. There are others like this one: http://forum.unity3d.com/threads/148452-Marching-Cubes-Infinite-Terrain-Infinite-Object-Fast-and-Optimized/page2 but it also doesn't seem to be going anywhere.
The way we did it was kinda hard to do and not recommended for everyone (or anyone). Unity's able to read c++ stuff on a very small cache, and we're pretty much doing our entire marching cubes voxel calculations through that, that's the reason you have a frame drop whenever you load a new area of terrain. Knowing what we know now...we might still have done this, but we would have also taken advantage of just using another cpu core to exclusively convert voxel data to terrain data.
Depending on how the Kickstarter goes, we'll probably include a level editor in there (or spin it off into another project altogether, I have a lot of idea regarding where this genre can go, depending on the tech in the next 2-3 years).
What did i say... you were my last resort with this as i didn't want to keep you from creating games
However i've looked through the things you posted and looked through another few things on the internet which didn't really help.
I think going straight into Voxel stuff is like jumping in at the deep of the swimming pool, i just don't understand it.
I'm now going to go look for some very very very very basic tutorials on how to just normal start off a game, even at the basic level of "This is how you make a box". Then i can just layer and layer it on until i understand what i'm doing more or less, then move onto Voxel stuff
One of my main wishes is to have a published game that i created or assisted in creating by code and what not. So i've gotta start somewhere
But still, thanks for the help. It's helped me find a path of where i want to go to start off something of my own (for myself of course).
Who knows, if i catch on quick i might be able to help you make you game somewhere
, although i doubt it haha. (would be for free though like i do now