The original Hexographer is still available as a free, ad-supported Java app (or paid ad-free version). While no longer updated, it runs on most systems and offers surprisingly powerful world generation. Many older GMs still swear by it.
The software starts at around $35 for the basic version, with upgrades for city mapping or commercial use. While modest, that price can be a barrier for students, hobbyists on tight budgets, or GMs in countries with unfavorable exchange rates. Hence, some search for a “Worldographer crack” to unlock the full tool for free. worldographer crack