Simple and clear model of Solar system. Autocad-like zooming and scrolling provides user with easy navigation. Real astronomical values allow to add and edit objects without additional calculations. Ship-objects are under influence of gravity of all planets at once. And the time speed is under control ofcourse.
This engine is created to be universal. Use close-zoom with slow time speed for action or far-zoom with faster time speed for strategy.
Try demo: https://drive.google.com/open?id=0B58tbHyCFx2AblJLNHlOa0tuMFE