From Protozoic to Heartbreak

Circa d20 System era, I'd been posting my D&D ideas to my friends' blog Protozoic.  Since some of that is the basis for work here, it seems best to collect it in one place for reference.  Especially since I keep thinking I've done a writeup of armor for the Crude Roleplaying Engine, but apparently haven't done anything extensive about that yet.

Armor & Damage Reduction - The basis for most of my armor rules:

Injury & Consequences - Mechanics relating to what injury does to a character and how it is recorded.  Also a revisited version.

Playtest - A playtest of some of the armor and injury mechanics.

Tradesman & Sage - Two new 3.x classes.