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Old-School Essentials vs Shadowrun

Compare Old-School Essentials and Shadowrun side by side. See differences in complexity, dice, genre, cost, and more.

Old-School EssentialsShadowrun
GenreFantasyCyberpunk, Fantasy
Play StyleDungeon Crawl, Deadly, Sandbox, Low-Prep, Beginner-Friendly, Gritty, Ascending AC, Descending AC, Vancian CastingCrunchy, Tactical, Combat-Heavy, Heist, Character Building, Faction Play, Lore-Heavy, Skill-Based, Mission-Based, Urban Fantasy
Core MechanicRoll d20 vs. descending AC via attack matrix (THAC0). Five-category saving throws. Side-based d6 initiative each round.Roll a pool of d6s equal to attribute + skill, counting 5s and 6s as hits. Meet or exceed a threshold to succeed. Situational advantages generate Edge points rather than modifying dice pools directly; Edge is spent on tactical effects like rerolling dice, adding successes, or imposing penalties on opponents.
Diced20d6 dice pool
ComplexityLowVery High
AccessibilityHighMedium
RunnabilityVery HighMedium
LicenseOGL 1.0aNo open license
Cost$$$$$
PublisherNecrotic GnomeCatalyst Game Labs
Year20192019
Best ForGroups wanting a clean, beautifully organized take on classic B/X D&D with decades of compatible old-school content.Groups who want cyberpunk-fantasy heists with deep mechanical subsystems for hacking, magic, and combat.
HighlightsClear layout and organization, wide B/X and OSR compatibility, modular supplements, highly hackableUnique cyberpunk-fantasy setting blending megacorporate intrigue with magic and metahuman races. Dedicated subsystems for Matrix hacking, magic, rigging, and astral space. Edge system replaces many situational modifiers with a spendable tactical resource. Decades of published lore spanning in-world history from 2011 to the 2080s.
ConsiderationsNo domain play or mass combat in core rules, treasure-as-XP requires careful GM economy management, limited character options in Classic edition without Advanced supplementsMatrix hacking runs as a parallel subsystem that can leave non-decker players waiting. Multiple supplemental rulebooks needed for full coverage of magic, Matrix, and rigging. Published books have documented editing and layout issues.