The Majestic Fantasy RPG

A Tabletop Roleplaying Game Compatible with the Swords & Wizardry Rules and all Editions Based on the Original 1974 Roleplaying Game

From the introduction:

What makes this system unique? First, I have additional classes that reflect important types of characters in the Majestic Wilderlands. Central to how I run my campaign is that the players can “trash” the Wilderlands by making their mark. Sometimes they only impact a single locale, other times they impact entire regions. Because of this, what characters do outside of adventuring is important. To support this, I created an ability system to handle many of the thing attempt to do as their character that doesn’t involve healing, combat, or casting magic.