Hey, it's been a while. 

First of all, I have not dropped G.R.E.G., I am still working on it, slowly though.

Second of all, The latest version of Unity that I am using takes about 5 hours to do a single build so I will not be releasing level 13 on it's own, I plan to release as many as possible once I get a new editor version that does not take hours to build.