Optional Systems

Variant Rules

Optional subsystems meant to be adopted intentionally at session zero, not assumed by default. Core player rules live in the Rules Compendium; GM operations live in the Game Master Reference.

Library Overview

Alternative Rules

Different damage tracks, armour that stops hits, hero points, skill variants, automatic bonus progression, and rules for young characters.

GMG UC UCamp PFU ARG

Combat Variants

Gunpowder weapons, formal duels, performance combat for crowds, siege engines, and vehicle rules.

Ultimate Combat

Magic Variants

Spell research, spell duels, Words of Power, spellblights, psychic magic, occult rituals, simplified spellcasting, and spell alterations.

UM OA PFU

Campaign Variants

Honor, fame, hex exploration, bargaining, kingdom building, mass combat, sanity, race builder, and horror systems.

UCamp GMG HA

Mythic Adventures

A second axis of power beyond character levels — mythic tiers, path abilities, and the universal power pool.

Mythic Adventures

Technology Guide

Numerian science-fantasy rules — power cells, radiation, artificial intelligence, and skymetals.

Technology Guide