Once I got going on this little experiment, I decided it might also be fun to throw in some alternate rules and make Pars Fortuna into a toolbox for customizing a fantasy game. To that end, I inserted an alternate spell casting system, encumbrance rules and rules for weapons and armor. The result was a game largely compatible with Swords and Wizardry and other old school clones (and their originals) but with a fun twist.
Pars Fortuna is playable as is, or you can take the elements you like and insert them in your own campaign.
Pars Fortuna comes in two forms, the free basic rules and the complete rules, which can be purchased at Lulu.com. If you've really become a fan of the setting (or just like the art) you can purchase t-shirts as well.