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Grizzled Adventurers

Core
Lightweight OSR dungeon crawling for a band of grizzled old heroes
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Best For

One-shot dungeon crawls with experienced mid-level heroes: perfect for pickup games or nights when a player or two are missing.

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.

Diced20
System FamilyStandalone
PublisherFlatland Games
Year2022
ComplexityHow much there is to learn
Low

It uses OSR rules: roll under an ability for checks, d20 versus AC for combat. Shared, pass-around character creation is its hook. Play stays old-school simple.

AvailabilityHow you get the rules
  • Free to tryNothing freeNo free rules or starter
  • Get it nowSold newIn print or as a legal PDF
RunnabilityWhat the book gives you to run it
  • –IndexNo back-of-book index or page-keyed reference tables
  • ✓GM guidanceA chapter on how to run the game
  • ✓Examples of playRules shown in action at the table
  • ✓Quick referenceCheat sheet or summary tables
  • ✓Cross-referencesRules point to each other by page

4 of 5 book tools found in the core book

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

Rules license OGL 1.0a

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