The source, located here, http://www.openbsd.org/cgi-bin/cvsweb/~checkout~/src/games/rogue/,
was removed from the OpenBSD tree because the license given had three
clauses. The third prohibits commercial use of the game, which means
that OpenBSD can't distribute the game and still sell CDs.
As I think everyone can agree that nobody's going to make a profit
selling Rogue nowadays, I was hoping to contact him and ask if he
would be willing to relicense under the BSD license, which would
enable him to keep the first two requirements in his license and allow
everyone to more efficiently waste away hours playing Rogue. :)
The best e-mail addresses that I can find from him are of questionable
value.