As Xamarin 5.10 suffers from very serious memory leaks when compiling (and I still haven't started to help out in the new mono-D thanks to I needed to cling back on an old version and there's no way using a new alongside the old), so I need an IDE replacement in the meanwhile to continue working on my projects. I once rebuilt my project to separate the editor and the engine, the engine itself is planned to be multi-platform (with plans to try to make it work on a cheap single-board ARM-based PC).