Stars Without Number
Revised EditionSandbox sci-fi with the best GM tools in the business
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Languages: English
Dice2d6 / d20
System FamilyWithout Number
CostFree / $$
LicenseProprietary
PublisherSine Nomine Publishing
Year2017
Complexity
Medium
Accessibility
Very High
Community
High
Core Mechanic
2d6 + skill + attribute ≥ target for skills; d20 + modifiers for combat. OSR-inspired.
Best For
Sandbox sci-fi campaigns with comprehensive GM tools for faction turns, sector generation, and adventure creation.
Highlights
Free version is generous, comprehensive sandbox tools, faction system
Considerations
OSR combat can feel flat compared to modern tactical systems, B/X heritage means limited mechanical support for social or narrative play