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Basic Roleplaying vs Storypath Ultra

Compare Basic Roleplaying and Storypath Ultra side by side. See differences in complexity, dice, genre, and more.

Basic RoleplayingStorypath Ultra
GenreUniversalUniversal
TagsSkill-Based, Modular, Simulation, Gritty, Roleplay-Heavy, Investigation, Low-Fantasy, ClasslessToolkit, Modular, Hackable, Investigation, Social Intrigue, Narrative, Classless
Core MechanicRoll d100 under your skill percentage to succeed. Critical success on 1/20th of skill value, fumble on 99–100. Opposed rolls compare results. Optional rules layer on complexity as desired.Roll a pool of d10s equal to Skill + Attribute. Each die showing 8+ is a hit; 10s count as two hits. Add Enhancement (bonus hits from gear, abilities, or circumstances). Spend hits to meet the difficulty, buy off Complications (side effects attached to the roll), or purchase Tricks (extra effects like knockdown or critical hits). Failed rolls generate Momentum, a shared pool players spend for bonus hits, to turn failures into successes, or to introduce story facts.
Diced100d10 dice pool
ComplexityMediumMedium
AvailabilityFree core rulesPaid
Runnability5 of 5 book tools4 of 5 book tools
LicenseORCProprietary (third-party license pending)
Third-Party PublishingNot yet researchedNot yet researched
PublisherChaosium Inc.Onyx Path Publishing
Year20232026
LanguagesEnglishEnglish
Best ForGMs who want a modular, genre-agnostic percentile system they can tailor to any setting with optional rules for powers, combat, and more.Groups who want a genre-agnostic d10 dice pool engine with dedicated subsystems for action, investigation, and social intrigue: especially those building their own setting or adapting existing Storypath games.
HighlightsHighly modular: add or remove subsystems at will, intuitive percentile mechanic, unified system across any genre, skill-based progression through use, long design heritageThree distinct play modes (action-adventure, investigation, and influence) each with dedicated mechanics. Complications and Tricks give every successful roll narrative texture beyond pass/fail. Momentum turns failed rolls into a shared resource that keeps the story moving. Modular building-block systems (powers, heists, vehicles, crafting, large-scale combat) plug into any game.
ConsiderationsCan feel generic without a specific setting, requires GM effort to select which optional rules to use, combat can be deadly and swingyNo included setting beyond three short examples: groups must build or adapt their own world. No free quickstart or SRD available. Multiple interacting subsystems (Enhancement, Advantage, bonds, Complications) take several sessions to internalize.