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Claude RPG

World Generation

Generating a world

Section titled “Generating a world”

Any text prompt becomes a playable world:

Terminal window
claude-rpg new "A flooded gothic trade city ruled by three merchant houses"

World generation uses Claude Opus. The engine builds:

  • Factions with goals, relationships, territory, and power levels
  • NPCs with beliefs, memories, faction loyalty, and personality
  • Districts with commerce, morale, safety, and controlling factions
  • Items with stats and initial provenance
  • Zone connections with exits and terrain

What makes a good prompt

Section titled “What makes a good prompt”

Prompts that generate richer worlds tend to include:

  • Power dynamics — who’s in charge, who’s fighting for control
  • Tension — what conflict drives the world
  • Setting details — geography, technology level, atmosphere
  • Faction hints — groups with competing interests

Examples:

Terminal window
# Political intrigue
claude-rpg new "A desert oasis kingdom where the water guild controls everything and the sand nomads are planning a revolution"


# Horror
claude-rpg new "A Victorian asylum where the patients are sane and the doctors are conducting rituals in the basement"


# Sci-fi
claude-rpg new "A generation ship where the AI overseer has been dead for a century but nobody noticed"

Starter worlds vs generated worlds

Section titled “Starter worlds vs generated worlds”

Starter worlds are hand-crafted content packs shipped as engine packages. They have more detailed NPCs, richer faction webs, and pre-built narrative hooks. Generated worlds are created on the fly from your prompt — they’re playable immediately but may have simpler initial faction structures.

Both use the same engine. All 29 simulation modules (combat, cognition, perception, factions, rumors, NPC agency, companions, leverage, strategic maps, item recognition, equipment provenance, emergent opportunities, arc detection, endgame triggers) run identically on starter and generated worlds.

Content validation

Section titled “Content validation”

Generated worlds are validated against the engine’s content schema before play begins. The schema enforces:

  • Valid entity types and relationships
  • Required fields for NPCs, factions, and zones
  • Consistent zone connectivity (no orphaned exits)
  • Valid item stat ranges