One game I recommend with all my hearth is Alessandro "Alex.tg/Fottifoh" Gignola's [url=members.designheaven.com/~44/noctis.html]
Noctis IV[/url].
It is the gratest space-exploration simulator to date, and tough the graphics may not be so great as Celestia or Orbiter; the game itself is extremely addicting.
The sequel to Noctis IV,
Noctis V: The Galactic Odyssey; will have way better graphics (up to the graphics of Orbiter and Celestia), many new features and an all revolutionery engine.
Noctis V is scheduled for release Epoc 6011:600; in Earth date, that's late 2002, somewhere in December.
With Noctis V, Celestia and Orbiter, freeware is about to change the space-simulator genre forever...
Edit:
I have written a simple FAQ about Noctis V and its many features.
If you have any questions about Noctis V, please copy and paste the following adress into the adress-bar to view it:
http://starcon.bravepages.com/Noctis%20V%20FAQ.doc
You can also view the HTM-version of the FAQ
here
All information in this FAQ has been approved by Alessandro (the creator of Noctis).
Stargazer.