As part of the now legendary Numen demo, the vector engine was used as part of the interconnecting elements of the demo.    I can see here there is a standalone playable Vector engine:        I am after the xex for this engine.    All I can find is the xex for the vector demo, which is also playable, but is just a green screen version where you appear to be inside a building all the time. Very impressive but not the outside colour one above.