The Primal Codex would be a good resource for a primative/jungle campaign, IMO. It's available over at RPGNow.com.
I just took a look at the page for The Primal Codex over at RPGNow.com. I'm not sure what to make of it. Anyone have any experience with it?
Here's its ad blurb:
The Primal Codex contains more than 120 pages of options and enhancements for adding a primitive, wilderness theme to any d20 game.
The Codex presents detailed information for over 40 poisons including death caps, hemlock and monkshood as well as rules for more than 40 diseases including rabies, cholera and tuberculosis. It also covers a list of 60+ new conditions including seizure, headache, muscle pain, and chills.
For players, the Primal Codex contains 5 new races like the grundengar, phrohiem, neanderthal and aborigine. There are also many new classes and prestige classes like the beast lord, the animal master and others in the Primal Codex. With the Codex you also gain details on several expanded skills such as Profession (herbalist), which includes a long list of new herbal concoctions.
The Codex also presents a large collection of magic items and spells too, including Blaze, Disable, Die hard, were-shape, staggering blows, and over 60 more!
Furthermore, the Codex outlines a long list of new equipment items including boomerangs, throwing arrows, and atlatls and it features a collection of more than 40 new monsters including the Wendigo!
Finally, the Codex covers several new options for enhanced campaigning including pain penalties, execution rules and even torture!
Take your game to the bleeding edge today with the Primal Codex!