[NikhilVerma]

If you are interested in space sim's you should check out Space Engine [1]. It's build on real data combined with procedural generation.

Here is a quote from their website:

"SpaceEngine - a free space simulation program that lets you explore the universe in three dimensions, from planet Earth to the most distant galaxies. Areas of the known universe are represented using actual astronomical data, while regions uncharted by astronomy are generated procedurally. Millions of galaxies, trillions of stars, countless planets - all available for exploration. You can land any planet, moon or asteroid and watch alien landscapes and celestial phenomena. You can even pilot starships and atmospheric shuttles."

[1]: http://en.spaceengine.org/

[mkesper]

Too bad this is not Free Software but instead regarded as trade secrets. :(

[eps]

Why is it too bad?