Old-School Essentials vs Shadowdark RPG
Compare Old-School Essentials and Shadowdark RPG side by side. See differences in complexity, dice, genre, cost, and more.
| Old-School Essentials | Shadowdark RPG | |
|---|---|---|
| Genre | Fantasy | Fantasy |
| Play Style | Dungeon Crawl, Deadly, Sandbox, Low-Prep, Beginner-Friendly, Gritty, Ascending AC, Descending AC, Vancian Casting | Deadly, Dungeon Crawl, Rules-Light, Low-Prep, Gritty, Fast-Paced, Theater of the Mind, Ascending AC, Roll to Cast, Random Tables |
| Core Mechanic | Roll d20 vs. descending AC via attack matrix (THAC0). Five-category saving throws. Side-based d6 initiative each round. | Roll d20 + ability modifier vs. DC/AC. Real-time torch tracking (1 real-world hour per torch), risky spellcasting (fail a check and lose the spell for the day), and randomized character generation (3d6 down the line). |
| Dice | d20 | d20 |
| Complexity | Low | Very Low |
| Accessibility | High | High |
| Community | High | Medium |
| License | OGL 1.0a | Shadowdark RPG Third-Party License |
| Cost | $$ | $$ |
| Publisher | Necrotic Gnome | The Arcane Library |
| Year | 2019 | 2023 |
| Best For | Groups wanting a clean, beautifully organized take on classic B/X D&D with decades of compatible old-school content. | Tense, fast-paced dungeon crawling where resource management and player ingenuity matter more than character builds. Ideal for groups wanting old-school lethality with a modern, 5e-familiar ruleset. |
| Highlights | Clear layout and organization, wide B/X and OSR compatibility, modular supplements, highly hackable | Real-time torch mechanic adds tension, near-zero prep with built-in random tables, 5e-familiar so easy to learn, fast combat |
| Considerations | No domain play or mass combat in core rules, treasure-as-XP requires careful GM economy management, limited character options in Classic edition without Advanced supplements | Limited character customization at creation, random talent progression removes some player agency, real-time torch tracking requires consistent timekeeping, carousing is the only XP path |