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Ironsworn: Starforged vs Traveller

Compare Ironsworn: Starforged and Traveller side by side. See differences in complexity, dice, genre, cost, and more.

Ironsworn: StarforgedTraveller
GenreScifiScifi
Play StyleNarrative, Solo-Friendly, Sandbox, Exploration, Fiction-First, Theater of the Mind, Worldbuilding, Character-Driven, Open Source, Random TablesSandbox, Simulation, Exploration, Deadly, Character Building, Faction Play
Core MechanicRoll 1d6 (action die) + stat vs. two d10 challenge dice. Beat both = strong hit, beat one = weak hit, beat neither = miss. Momentum meter (-6 to +10) can be burned to replace your action score. Moves resolve fiction; progress tracks measure quests, expeditions, and combat. Oracle tables generate story prompts for solo and co-op play.Roll 2d6 + skill + modifier ≥ 8 to succeed. Character generation is a mini-game.
Diced6 + 2d102d6
ComplexityLowMedium
AccessibilityVery HighHigh
RunnabilityVery HighVery High
LicenseCC BY-NC-SA 4.0Traveller Fair Use Policy
Cost$$$$
PublisherTomkin Press / Modiphius EntertainmentMongoose Publishing
Year20222022
Best ForSolo or small-group sci-fi campaigns driven by sworn vows, with rich oracle tables, starship exploration, and collaborative worldbuilding: no GM required.Hard sci-fi sandbox campaigns with trading, exploration, and realistic space travel.
HighlightsStrong solo RPG design, 'Choose Your Truths' worldbuilding tailors the setting, large oracle chapter for emergent story, momentum system creates dramatic tension, three flexible play modes (solo/co-op/guided)Comprehensive sci-fi toolkit, lifepath character creation, detailed trade/travel systems
ConsiderationsDense 400-page rulebook despite narrative focus, large move count to internalize, setting is human-centric by default, oracle-driven play can produce disjointed narratives without careful interpretationLifepath character creation can produce unplayable results, subsystem rules are spread across multiple supplements, steep buy-in if using official sourcebooks