The Black Hack
Second EditionBest For
Groups wanting a fast, hackable OSR dungeon-crawling game with modern design sensibilities: roll under attributes, abstract distances, and usage dice that track resources without bookkeeping.
Core Mechanic
Players roll d20 under their attribute scores to succeed at actions. Advantage and Disadvantage (roll 2d20, pick best or worst) modify difficulty. Armour provides a pool of d6 Armour Dice that absorb damage. Consumable resources use a Usage Die chain (d20→d12→d10→d8→d6→d4→gone): roll 1–2 to downgrade.
Players roll a d20 under their attributes, with advantage and disadvantage adjusting odds. It is a stripped-down old-school engine you learn in minutes.
- Free to tryFull core rulesLegally free as an SRD, PDF, or official web rules
- Get it nowAvailable nowFree to download or read online
- –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
Highly hackable: spawned an entire subgenre of 'X Hack' games, core rules fit in about 30 pages, Usage Die tracks resources without inventory math, armour-as-dice-pool adds a tactical layer, conversational writing style makes rules easy to learn
Considerations
Only 4 classes (Warrior, Thief, Cleric, Wizard) in the core, limited character customization beyond class and background, no setting included, light on GM guidance compared to larger games, may lack depth for long campaigns
Rules license The Black Hack Open Game License
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