{
  "name": "The Arcanum AI RPG Benchmark — Prompt-Games",
  "edition": "2026 H2",
  "published": "2026-07-29",
  "updated": "2026-09-18",
  "archived": null,
  "doi": null,
  "url": "https://arcanumrpgs.com/benchmark/games/",
  "partOf": "https://arcanumrpgs.com/benchmark/",
  "methodology": "https://arcanumrpgs.com/methodology/",
  "methodologyVersion": "1.0",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "licenseName": "CC BY 4.0",
  "citation": "The Arcanum AI RPG Benchmark — Prompt-Games, 2026 H2 edition. Arcanum RPGs. https://arcanumrpgs.com/benchmark/games/ (CC BY 4.0). Not archived — cite with the date you read it.",
  "publisher": "Arcanum RPGs",
  "creator": "Rukka",
  "scope": "Third-party AI RPG prompt-games — text files, Custom GPTs and projects loaded into an assistant the player already pays for — scored first-hand on the same published rubric as the hosted platforms. Arcanum Originals are excluded by policy: we do not score our own work. Hosted platforms are measured separately at /benchmark, because averaging the two produces a figure describing neither field.",
  "scale": {
    "min": 0,
    "max": 5,
    "increment": 0.25,
    "increments": "Whole and half points are the working scale. Quarter points are legal only as a named tie-break — see the granularity note on the methodology page.",
    "composite": "Mean of the axes that apply, rounded to 0.1. Inapplicable axes are excluded, never scored zero.",
    "note": "A scored 0 means the capability is absent or broken. A missing axis means it did not apply to that product."
  },
  "axes": [
    {
      "key": "memory",
      "label": "Memory & Continuity",
      "measures": "Does the world remember what happened, and for how long?"
    },
    {
      "key": "agency",
      "label": "Player Agency",
      "measures": "Railroading AND puppeting — can you act off-path, and does the narrator stay out of your character's mouth?"
    },
    {
      "key": "npc",
      "label": "NPC Fidelity",
      "measures": "Consistent personality, own goals, durable reactions — or agreeable mirrors?"
    },
    {
      "key": "depth",
      "label": "Mechanical Depth",
      "measures": "Real systems underneath, or narration wearing dice?"
    },
    {
      "key": "fairness",
      "label": "Determinism & Fairness",
      "measures": "Outcomes earned and consistent, or arbitrary and luck-washed?"
    },
    {
      "key": "longevity",
      "label": "Longevity",
      "measures": "Does it survive past turn 50 and the novelty window?"
    },
    {
      "key": "signature",
      "label": "Signature Design",
      "measures": "Does it do something nobody else does?"
    }
  ],
  "fieldAverages": {
    "memory": {
      "mean": 2.25,
      "max": 3,
      "heldBy": [
        "Solo RPG Master",
        "Valkyrie's Biggest Gig",
        "Gamekeeper RPG Prompt"
      ],
      "scoringOneOrBelow": 0
    },
    "agency": {
      "mean": 2.25,
      "max": 3,
      "heldBy": [
        "Solo RPG Master",
        "Deep Saga",
        "Vantiel"
      ],
      "scoringOneOrBelow": 0
    },
    "npc": {
      "mean": 2.42,
      "max": 3,
      "heldBy": [
        "Solo RPG Master",
        "Isekai RPG",
        "Vantiel",
        "Burning Sun V2",
        "RPG GPT",
        "Solo D&D Starter Prompt"
      ],
      "scoringOneOrBelow": 1
    },
    "depth": {
      "mean": 1.75,
      "max": 3,
      "heldBy": [
        "Isekai RPG",
        "Valkyrie's Biggest Gig"
      ],
      "scoringOneOrBelow": 4
    },
    "fairness": {
      "mean": 2.17,
      "max": 3,
      "heldBy": [
        "Deep Saga",
        "8-Bit Kingdoms",
        "Classic Text Adventure Prompt"
      ],
      "scoringOneOrBelow": 1
    },
    "longevity": {
      "mean": 2,
      "max": 3,
      "heldBy": [
        "Solo RPG Master",
        "Vantiel"
      ],
      "scoringOneOrBelow": 2
    },
    "signature": {
      "mean": 2.33,
      "max": 4,
      "heldBy": [
        "Isekai RPG",
        "8-Bit Kingdoms"
      ],
      "scoringOneOrBelow": 3
    }
  },
  "gameCount": 12,
  "games": [
    {
      "id": "solo-rpg-master",
      "name": "Solo RPG Master",
      "composite": 2.6,
      "tier": "extended",
      "runsOn": "chatgpt",
      "axes": {
        "memory": 3,
        "agency": 3,
        "npc": 3,
        "depth": 2,
        "fairness": 2,
        "longevity": 3,
        "signature": 2
      },
      "url": "https://arcanumrpgs.com/games/solo-rpg-master/"
    },
    {
      "id": "deep-saga",
      "name": "Deep Saga",
      "composite": 2.4,
      "tier": "standard",
      "runsOn": "chatgpt",
      "axes": {
        "memory": 2,
        "agency": 3,
        "npc": 2,
        "depth": 2,
        "fairness": 3,
        "longevity": 2,
        "signature": 3
      },
      "url": "https://arcanumrpgs.com/games/deep-saga/"
    },
    {
      "id": "isekai-rpg",
      "name": "Isekai RPG",
      "composite": 2.4,
      "tier": "standard",
      "runsOn": "chatgpt",
      "axes": {
        "memory": 2,
        "agency": 2,
        "npc": 3,
        "depth": 3,
        "fairness": 2,
        "longevity": 1,
        "signature": 4
      },
      "url": "https://arcanumrpgs.com/games/isekai-rpg/"
    },
    {
      "id": "vantiel",
      "name": "Vantiel",
      "composite": 2.4,
      "tier": "standard",
      "runsOn": "chatgpt",
      "axes": {
        "memory": 2,
        "agency": 3,
        "npc": 3,
        "depth": 1,
        "fairness": 2,
        "longevity": 3,
        "signature": 3
      },
      "url": "https://arcanumrpgs.com/games/vantiel/"
    },
    {
      "id": "8-bit-kingdoms",
      "name": "8-Bit Kingdoms",
      "composite": 2.3,
      "tier": "standard",
      "runsOn": "chatgpt",
      "axes": {
        "memory": 2,
        "agency": 2,
        "npc": 2,
        "depth": 2,
        "fairness": 3,
        "longevity": 1,
        "signature": 4
      },
      "url": "https://arcanumrpgs.com/games/8-bit-kingdoms/"
    },
    {
      "id": "valkyries-biggest-gig",
      "name": "Valkyrie's Biggest Gig",
      "composite": 2.3,
      "tier": "standard",
      "runsOn": "claude",
      "axes": {
        "memory": 3,
        "agency": 2,
        "npc": 2,
        "depth": 3,
        "fairness": 1,
        "longevity": 2,
        "signature": 3
      },
      "url": "https://arcanumrpgs.com/games/valkyries-biggest-gig/"
    },
    {
      "id": "burning-sun-v2",
      "name": "Burning Sun V2",
      "composite": 2.1,
      "tier": "standard",
      "runsOn": "gemini",
      "axes": {
        "memory": 2,
        "agency": 2,
        "npc": 3,
        "depth": 1,
        "fairness": 2,
        "longevity": 2,
        "signature": 3
      },
      "url": "https://arcanumrpgs.com/games/burning-sun-v2/"
    },
    {
      "id": "gamekeeper-rpg-prompt",
      "name": "Gamekeeper RPG Prompt",
      "composite": 2.1,
      "tier": "standard",
      "runsOn": "gemini",
      "axes": {
        "memory": 3,
        "agency": 2,
        "npc": 2,
        "depth": 2,
        "fairness": 2,
        "longevity": 2,
        "signature": 2
      },
      "url": "https://arcanumrpgs.com/games/gamekeeper-rpg-prompt/"
    },
    {
      "id": "rpg-gpt",
      "name": "RPG GPT",
      "composite": 2,
      "tier": "standard",
      "runsOn": "chatgpt",
      "axes": {
        "memory": 2,
        "agency": 2,
        "npc": 3,
        "depth": 2,
        "fairness": 2,
        "longevity": 2,
        "signature": 1
      },
      "url": "https://arcanumrpgs.com/games/rpg-gpt/"
    },
    {
      "id": "classic-text-adventure-prompt",
      "name": "Classic Text Adventure Prompt",
      "composite": 1.9,
      "tier": "standard",
      "runsOn": "claude",
      "axes": {
        "memory": 2,
        "agency": 2,
        "npc": 1,
        "depth": 1,
        "fairness": 3,
        "longevity": 2,
        "signature": 2
      },
      "url": "https://arcanumrpgs.com/games/classic-text-adventure-prompt/"
    },
    {
      "id": "realm-companion-rpg-prompt",
      "name": "Realm & Companion RPG Prompt",
      "composite": 1.9,
      "tier": "standard",
      "runsOn": "gemini",
      "axes": {
        "memory": 2,
        "agency": 2,
        "npc": 2,
        "depth": 2,
        "fairness": 2,
        "longevity": 2,
        "signature": 1
      },
      "url": "https://arcanumrpgs.com/games/realm-companion-rpg-prompt/"
    },
    {
      "id": "solo-dnd-starter-prompt",
      "name": "Solo D&D Starter Prompt",
      "composite": 1.6,
      "tier": "standard",
      "runsOn": "claude",
      "axes": {
        "memory": 2,
        "agency": 2,
        "npc": 3,
        "depth": 0,
        "fairness": 2,
        "longevity": 2,
        "signature": 0
      },
      "url": "https://arcanumrpgs.com/games/solo-dnd-starter-prompt/"
    }
  ]
}