334 Cepheus

A standalone 2D6 science-fiction ruleset and supplements: lifepath characters, skills, combat, gear, psionics, starships, trade, worlds, and later books for machines, aliens, horror, ship modules, cities, work, and small-unit fighting. Read the core in order, then any supplement you need.

Companion packaging on this site: the clean-room Cepheus Engine SRD Open Game Content lives at OpenSRD. 334 Cepheus is a separate ruleset; it does not rewrite OpenSRD chapter text.

Front

Core

Supplements

Legal

Packaging on 334digital

This is an HTML reading package of the 334 Cepheus Markdown rules for 334digital. Rules text was not rewritten for this packaging. See SOURCE.md for provenance, LICENSE.txt / Legal for the Open Game License and Section 15 notices, and README.md for the contents map. Incomplete table cells that appear in the source share were left blank on purpose; they were not filled in for this site.

334 Cepheus Copyright © 2026, 334 Cepheus Authors. Derived from Cepheus Engine System Reference Document, Copyright © 2016 Samardan Press; Author Jason "Flynn" Kemp.