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Dungeons & Dragons vs Worlds Without Number

Compare Dungeons & Dragons and Worlds Without Number side by side. See differences in complexity, dice, genre, cost, and more.

Dungeons & DragonsWorlds Without Number
GenreFantasyFantasy
Play StyleTactical, Heroic, Combat-Heavy, Dungeon Crawl, Character Building, High-Fantasy, Grid-Based, Beginner-Friendly, Classic Fantasy, Lore-Heavy, Ascending ACSandbox, Exploration, Faction Play, Worldbuilding, Tactical, Ascending AC, Vancian Casting
Core MechanicRoll d20 + modifier against a target DC (for ability checks and saving throws) or AC (for attacks). Meeting or exceeding the target succeeds. Advantage rolls 2d20 and takes the higher; disadvantage takes the lower, replacing most situational modifiers.2d6 + skill + attribute ≥ target for skills; d20 + modifiers vs. AC for combat. OSR-inspired with modern refinements.
Diced202d6 / d20
ComplexityMediumMedium
AccessibilityHighVery High
RunnabilityHighVery High
LicenseCC BY 4.0 (SRD); core books proprietaryProprietary
Cost$$$Free / $$
PublisherWizards of the CoastSine Nomine Publishing
Year20242021
Best ForGroups who want heroic fantasy adventures with tactical grid combat, deep character customization, and access to more published adventures and supplements than any other RPG.Sandbox fantasy campaigns with deep worldbuilding tools, faction turns, and an OSR-flavored system from the creator of Stars Without Number.
HighlightsAdvantage/disadvantage system simplifies most situational modifiers to a single mechanic. Extensive class and subclass options across 12 base classes with 48 subclasses in the 2024 PHB. The largest third-party content ecosystem in tabletop RPGs. Free basic rules and starter sets lower the barrier to entry.Free version is very generous, comprehensive sandbox and worldbuilding tools, faction system, compatible with SWN
ConsiderationsHigh-level play (tier 3-4) introduces significant spell interaction complexity and encounter balancing challenges for GMs. No official rules for non-fantasy genres. Three core books at $50 each represent a significant investment for the full rules.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