Worlds Without Number
1st EditionSandbox fantasy with legendary GM worldbuilding tools
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Languages: English
Dice2d6 / d20
System FamilyWithout Number
CostFree / $$
LicenseProprietary
PublisherSine Nomine Publishing
Year2021
Complexity
Medium
Accessibility
Very High
Community
Medium
Core Mechanic
2d6 + skill + attribute ≥ target for skills; d20 + modifiers vs. AC for combat. OSR-inspired with modern refinements.
Best For
Sandbox fantasy campaigns with deep worldbuilding tools, faction turns, and an OSR-flavored system from the creator of Stars Without Number.
Highlights
Free version is very generous, comprehensive sandbox and worldbuilding tools, faction system, compatible with SWN
Considerations
OSR combat can feel basic compared to modern tactical systems, limited mechanical support for narrative or story-arc campaigns, no built-in social encounter system