Delta Engine
The Delta Engine is an open source application engine and free to use on PC. It allows to write 2D and 3D applications or games very quickly and easily with Visual Studio in .NET and our Editor. Via our cloud services the Delta Engine can convert between C#, C++, Objective-C, Java and JavaScript to bring your apps to other platforms (Android, iOS, WP, W8, HTML5).
Clean Code, Tutorials, 100% Code Coverage and our cloud approach allows easy coding, sharing and collaboration. Why not try it out yourself in the browser or download the full thing and give it a try. Version 1.0 is released when all features and major platforms are done and we have finished one project with it. The community edition of the Delta Engine is currently not updated (last release was in 2014), we are working on a game project and will return to it in the future when we have the funds to continue development.