One Hero Engine: Quick Reference
A consolidated quick-reference page for the current One Hero Engine draft.
Series
One Hero Engine
One Hero Engine v0.20 is the current coherent playtest edition, with the older v0.12 draft preserved as an archive alongside related solo campaign notes.
One Hero Engine: Advancement
The advancement draft for One Hero Engine, including level gains, trait progression, capstones, and the current legacy notes.
One Hero Engine: Magic
The current spellcasting draft for One Hero Engine, including MP rules, casting paths, provisional spell lists, and mythic spells.
One Hero Engine: Classes and Paths
All current class and path options for One Hero Engine, preserving the published trait lists and class structure.
One Hero Engine: Ancestries
All ancestry options from the current One Hero Engine draft, preserving the published race text and trait lists.
One Hero Engine: Solo Play
The solo-play tools for One Hero Engine, centered on the Oracle, Chance and Risk dice, and Twist Points.
One Hero Engine: Combat
The current combat draft for One Hero Engine, including turn order, Fray, damage steps, damage conversion, and Soak.
One Hero Engine: Core Rules
The core resolution rules for One Hero Engine, including checks, saves, tags, and the draft's general non-combat procedures.
One Hero Engine: Character Creation
The current character creation sequence for One Hero Engine, including stats, modifiers, tags, traits, and derived values.
One Hero Engine: Start Here
The shortest path into One Hero Engine, covering what you need, how the Oracle works, and how the draft expects play to begin.
One Hero Engine Campaign Setup
Why I am building a solo hero campaign around One Hero Engine, and what I want that system to handle before play starts.
One Hero Engine
Archived One Hero Engine v0.12 draft pages preserved for design history after the v0.20 rewrite.