Old-School Essentials
Classic FantasyThe gold standard retroclone of classic B/X D&D
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Languages: English, Italian, German, Spanish, French
Diced20
System FamilyOSR
Cost$$
LicenseOGL 1.0a
PublisherNecrotic Gnome
Year2019
Complexity
Low
Accessibility
High
Community
High
Core Mechanic
Roll d20 vs. descending AC via attack matrix (THAC0). Five-category saving throws. Side-based d6 initiative each round.
Best For
Groups wanting a clean, beautifully organized take on classic B/X D&D with decades of compatible old-school content.
Highlights
Clear layout and organization, wide B/X and OSR compatibility, modular supplements, highly hackable
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