And, regardless of what it is, they will sell many more copies by calling it a
Screensaver, than by just calling it a simulation of an aquarium.
Interesting! What did you base this fact on?
When I think about the word "Screensaver" I still think of quality like "Flying Toasters". When I think about the word "Simulation" I think more like the quality of a flight simulator. Maybe that's just me...