Dungeons & Dragons vs OSRIC
Compare Dungeons & Dragons and OSRIC side by side. See differences in complexity, dice, genre, cost, and more.
| Dungeons & Dragons | OSRIC | |
|---|---|---|
| Genre | Fantasy | Fantasy |
| Play Style | Tactical, Heroic, Dungeon Crawl, Character Building, High-Fantasy, Beginner-Friendly, Classic Fantasy, Lore-Heavy, Ascending AC | Dungeon Crawl, Tactical, High-Fantasy, Character Building, Theater of the Mind, Heroic, Descending AC, Vancian Casting |
| Core Mechanic | Roll 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. | Roll d20 + modifiers vs. target numbers (THAC0/AC for combat, saving throws for hazards). Ability scores rolled on 3d6, class and level determine hit dice, spells, and abilities. GM acts as referee for rulings. |
| Dice | d20 | d20 |
| Complexity | Medium | Medium |
| Accessibility | Very High | Very High |
| Runnability | High | Medium |
| License | CC BY 4.0 (SRD); core books proprietary | AELF + CC BY 4.0 (SRD 5.1) |
| Cost | $$$ | $ |
| Publisher | Wizards of the Coast | Mythmere Games |
| Year | 2024 | 2025 |
| Best For | Groups who want heroic fantasy combining tactical grid combat with deep character-build options, scaling from one-shots up through long multi-tier campaigns. | Players who want the classic AD&D 1e experience with cleaner organization, well-defined rules for combat and spells, and a huge library of compatible OSR content. |
| Highlights | Advantage and disadvantage collapse most situational modifiers into one mechanic: roll a second d20 and keep the higher or lower, so play rarely stops to total small bonuses. Each of the 12 classes offers four subclasses in the 2024 Player's Handbook, letting players reshape a class's role without multiclassing. Bounded accuracy keeps proficiency bonuses small, so low-level threats stay relevant in numbers and DCs read consistently across all tiers. | Faithful AD&D 1e rules reorganized for clarity, large back-catalog of compatible adventures, middle-ground complexity between B/X and modern D&D, free PDF available |
| Considerations | High-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. | Deliberately old-school: THAC0 and descending AC may confuse modern players, less balanced than modern systems, relies heavily on GM rulings, limited character customization compared to newer games |