Drisus

Drisus is a system developed by Dale. It serves as a continuation of his favorite aspects of Brass Monkey, including Feats, after it was discontinued for its use of the combat-mat. Other changes it makes include separation of hit points from skill level and adds passive effects tied to professions. Another of its main points is a system by which opposed rolls roll the same amount of dice regardless of level, but the one who typically rolls more dice takes off their lowest rolls. This is an attempt to make the party more safe from insta-kills in case they pick a fight with someone they really shouldn't have.

Second edition was published with some elements of Brisus. The manual can be found Here.

Example of a Drisus Character
Jeb Pebbles the Wandering Geologist: Level 3

Jeb Pebbles is a mildly-antisocial former geologist who now wanders the moon, fascinated with its topology, surviving on whatever he can dig up, or hunt down with the only tools at his disposal: his mining gear. He's grown zenlike in his starving isolation. Profession #1: Combat Geologist Skills: Skill #1a: Mining Equipment Proficiency (3) Skill #1b: Geology (2) Feat: Gains bonuses for using tools of quality materials. Spare Skill Points: 1 Inventory: Average Pickaxe