Worlds Without Number
At-a-glance: Sandbox fantasy OSR • Sword and sorcery • Extensive GM tools • Faction system • Hex-crawl ready • Compatible with Stars Without Number • Free version available
Theme and Setting
Worlds Without Number embraces sword and sorcery adventure in a fantasy world of blade and black magic. Unlike high fantasy epics about saving the world, WWN focuses on personal quests, mercenary work, and exploration of ancient ruins. The default setting is Latter Earth—a post-apocalyptic fantasy world where magic has returned after the fall of a technological civilization. However, the system is designed for creation-before-play: the extensive world-building tools help GMs generate unique settings rather than requiring use of the default.
Core Mechanics and Rules
WWN uses a 2d6 skill system combined with classic D&D combat mechanics (AC, hit points, saving throws). Character creation offers three modes: Adventurer (heroic), Warrior (grittier), or Mage (magic-focused). The standout feature is the extensive GM toolkit: tables for generating ruins, dungeons, cities, wilderness areas, and factions. The faction system allows organizations (cults, kingdoms, guilds) to pursue their own goals independently of the PCs, creating a living world. Magic uses a flexible system where casters combine Arts and Techniques to create custom spells.
What Makes It Unique
Kevin Crawford's signature sandbox support elevates WWN beyond typical fantasy RPGs. While most games provide rules for characters and combat, WWN dedicates half its page count to procedures for running emergent campaigns. The 'tag' system for locations and factions generates adventure hooks organically. The Godbound-inspired dominion rules let high-level PCs rule territories without breaking the game. The system's lineage from Stars Without Number means it can cross over with sci-fi campaigns—your fantasy world could be a lost colony, or spacefarers could visit your sword-and-planet setting.
Target Audience and Player Experience
Ideal for GMs who love preparation and world-building. The extensive tools reward those who enjoy creating sandbox environments where player choice drives the narrative. Groups seeking faction-heavy campaigns (Game of Thrones-style intrigue) will find robust support. The free version is genuinely complete—no paywalled essential rules—making it perfect for budget-conscious groups or those wanting to try before buying. Compatible with most OSR material, so your library of B/X adventures works with minimal conversion.
