The Harnic Astrology program takes a fully functional and richly detailed Earth-based Astrology Program ("SymSolon") (GNU) and changes the parameters to produce output appropriate for the Harnic Isles and the planet (solar system) of Kethira.
Designed from the top down as the backdrop for Joe Adams’ Knights of Kaldor campaign, the Hundred presents a GM with a rich inter-connected area as the setting for adventures or even a campaign.