Lightweight OSR dungeon crawling for a band of grizzled old heroes
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fantasy
Dungeon CrawlOne-Shot FriendlyRules-LightLow-PrepBeginner-FriendlyCharacter-DrivenTheater of the MindAscending AC
Languages: English
Diced20
System FamilyStandalone
Cost$
LicenseOGL 1.0a
PublisherFlatland Games
Year2022
ComplexityLow
AccessibilityHigh
CommunityVery Low
Core Mechanic
OSR rules: roll d20 under ability score for checks, d20 + attack bonus vs. AC for combat. Shared character creation via pass-around worksheets builds backstory and party bonds. Fortune Points grant rerolls and cheat death. Three classes (Warrior, Rogue, Mage) with familiar saving throws and hit dice.
Best For
One-shot dungeon crawls with experienced mid-level heroes — perfect for pickup games or nights when a player or two are missing.
Highlights
Shared character creation instantly builds party history and bonds, plays a full dungeon in one evening, OSR-compatible with existing modules and monsters, includes dungeon-building tools for the GM, handout-driven setup requires only dice and friends
Considerations
Fantasy dungeon crawl only — no overland or campaign play, very niche premise (old adventurers), three classes limit build variety