What has happened to Logicrucible, Inc. (formerly of
www.logicrucible.com), and where can I find/purchase/download copies
of their software products, Astrologicus Galaxy Simulator, and
Terralogicus World Simulator?

For bonus points, did the City Simulator ever get built? :)

They are out of business, their phone number is no longer in service,
and all of the threads on Usenet or message boards I found on topic
were similar dead ends.

The Internet Archive (http://webdev.archive.org) shows the company's
website working up to Oct 27, 2000 and having been taken over by a
porn site as of Sep 26, 2001.

I tried finding out who the person behind the software was, but he
always posted as "Logicrucible," so that's a dead-end a well.

Three possible leads:
1) Find out who was DBA Logicrucible, Inc. and try to locate and
contact him somehow.
2) Send a message via snailmail to the address given for Logicrucible
Inc. in every case I found, from 1994 Usenet to their own website in
2000:
PO Box 9885
Kansas City MO 64134-0885
3) Find someone who has a purchased copy of the software and buy it
from him.

The City Simulator is pointedly not mentioned as an extant product on
the archived Logicrucible website, so it seems to have been never
made.

The legal status of the software is unknown to me, so even if I could
find a place to download it, I couldn't point you to it.

nauster-ga

Thanks for your comment.  This is pretty much everything I know, but
some of the details are potentially useful, or at least interesting. 
(What does a porn site want with the "logicrucible" brand name?  Are
they that desperate for accidental customers?)  If I get desperate,
I'll investigate that PO Box, but I'm still hoping that someone can
find any more useful information and score the prize money.

The company is DF (Administratively Dissolved for failure to file an
Annual Report), and have not filed a report since 1999.

The agent is Scott G. Coleman, and his listed address is the same
address mentioned above. Maybe you can find him via the White Pages or
something.
http://www.sos.state.mo.us/BusinessEntity/charter.asp?cn=00391978