Re: OT: Hard Sci-Fi Role Playing Games...

>	Alternity

I don't have any experience with this one.

>	GURPS (Either Space or Traveller)

Good system. As complex - or not complex - as you want it be with the
addition of various sourcebooks. Well written and supported.

>	Marc Miller's Traveller

Also a good system, but more restrictive, and currently suffers from a
(possibly) terminal lack of support.

Schoon