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Scarlet Heroes vs Stars Without Number

Compare Scarlet Heroes and Stars Without Number side by side. See differences in complexity, dice, genre, and more.

Scarlet HeroesStars Without Number
GenreFantasySci-Fi
TagsSolo-Friendly, Sandbox, Dungeon Crawl, Low-Prep, Random Tables, Heroic, Ascending ACSandbox, Exploration, Low-Prep, Faction Play, Tactical, Ascending AC, Vancian Casting
Core MechanicChecks: roll 2d8 + attribute modifier + highest relevant trait vs. difficulty number. Attacks: roll d20 + attack bonus vs. AC 20. Unique damage conversion: each damage die reads individually (1 = 0, 2–5 = 1 point, 6–9 = 2 points, 10+ = 4 points), making a single hero viable against hordes. Heroes roll a Fray die each round to auto-damage lesser enemies.2d6 + skill + attribute ≥ target for skills; d20 + modifiers for combat. OSR-inspired.
Dice2d8 / d202d6 / d20
ComplexityLowMedium
AvailabilityFree quickstartFree core rules
Runnability4 of 5 book tools5 of 5 book tools
LicenseOGL 1.0aProprietary
Third-Party PublishingNot yet researchedNot yet researched
PublisherSine Nomine PublishingSine Nomine Publishing
Year20142017
LanguagesEnglishEnglish
Best ForSolo players, duet groups (1 player + 1 GM), or anyone wanting to run classic old-school adventures without a full party: one hero can tackle any module.Sandbox sci-fi campaigns with comprehensive GM tools for faction turns, sector generation, and adventure creation.
HighlightsSolo and duet scaling makes any old-school module playable with one hero, Fray die and damage conversion solve the action economy, solo oracle and adventure generators included, compatible with B/X and OSR modules, Red Tide setting includedFree version is generous, comprehensive sandbox tools, faction system
ConsiderationsSolo adventure tools require creative self-GMing, Red Tide setting is baked in (though easily reskinned), limited character options compared to full OSR games, older layoutOSR combat can feel flat compared to modern tactical systems, B/X heritage means limited mechanical support for social or narrative play