2. Running simulation from given examples
After starting the program you find an empty universe. As a good starting point you can open an existing simulation from the examples. For instance the delivered simulation file invasion.sim demonstrates various aspects of the physics engine.
You can simply run the simulation by invoking the play button. alien delivers standard navigation functions such as zooming and scrolling. The rendered images can be improved using a glowing effect filter (could be enabled/disabled in View -> Glow effect). Furthermore the built-in editor can be activated at any time also during running simulation. It is recommended to use it only with a high zoom level.