The prime purpose of Gravitorium is to let you play with ideas about gravity and gravitational systems. While it's not intended to be a highly accurate solar system simulator, at low speeds its accuracy is really pretty good. And, best of all, it lets you "play universe maker". Throw in a few extra planet, add a black hole, set a comet plunging towards the Earth! Or create an entirely new solar system from scratch.
Changes in this version:
Major improvements, creation wizard, screen captures
System requirements:
Pentium II, 16MB RAM
( By Rightword Enterprises - Gravitorium Pro Publisher )