Earth vs. Mars completes my trilogy of OpenGL space applications. Made with Qt and C++, it includes very simple game logic, as well as sounds and some nice original graphics. It has the potential to be somewhat engrossing if elaborated upon; even this simple application has almost 1000 lines of code. And yes, there is a "z-fighting' problem with the rocket exhaust. Note: due to a bug in the installer, you cannot launch this application from the Start menu, but rather must go to your Program Files directory and launch it directly from within the directory (Earth vs. Mars).