AI Game Cards

D&D-style RPG prompts for ChatGPT, Claude & Gemini

Updated

Original role-playing systems and campaigns your AI runs as game master. Free, no signup. Each game is a ready-to-play prompt (we call it a game card) that you open in your own AI assistant.

A tabletop RPG you play with an AI is a role-playing campaign where the assistant runs the world, the NPCs and the rules while you play one character. The card supplies the system, so the AI is refereeing a fixed set of rules rather than inventing outcomes as it goes.

New to AI games? Read how to play D&D with an AI dungeon master.

GameWhat it isPlayersLengthAges
The Toll at Blackbridge A one-night Ironquill mystery run by your AI game master: the bridge is owed a thing it was never given, and the river is rising. 1-2 1–2h 12+
The Severed Spire Chapter 1 of an Ironquill campaign inside a mile-high tower that sinks an inch a day; your save carries into the chapters to come. 1-2 1.5–3h 12+
The Gilt Horologe A one-night Ironquill heist inside a living clockwork vault that winds shut behind you, run by your AI game master. 1-2 1–2h 12+
Bramblewood A gentle, all-ages Ironquill one-shot your AI runs as game master: a woodland festival you set right with kindness. 1-4 30–60m All ages
AGC · 001 ◆ FIRST Tabletop RPG The Toll at Blackbridge 1-2P90mDICE AGC · 002 Tabletop RPG The Severed Spire 1-2PCH1/3DICE AGC · 010 Tabletop RPG The Gilt Horologe 1-2P90mDICE AGC · 011 Tabletop RPG Bramblewood 1-4P45mDICE

How does an AI run a role-playing game?

Ask an assistant to be your game master with no rules in front of it and it will agree to everything. There is no system telling it what a difficult climb costs, so danger stays rhetorical: you are told a fall would be deadly, then you never quite fall. The four cards on this shelf run the Ironquill engine, which fixes the numbers before you sit down — what a skill is worth, what Strain does as it climbs, what happens when a clock fills.

Rolls come off a published dice tape. Each card is seeded from its own id and version, so the sequence of d20s exists before your first move and cannot be nudged when a result is inconvenient. The tape position travels in your save, and you can regenerate the whole sequence from the seed at /verify/ and check it roll for roll against what your GM told you.

Every turn ends with a ledger line — scene, Strain, inventory, clocks — so the state is on the page instead of in the model's memory. That single line is what makes a long campaign survive a context window, and it is what a save code is built from when you stop.

Questions about D&D-style RPGs

Can ChatGPT or Claude really be a game master?

Yes, and it is one of the things assistants are genuinely good at — voicing NPCs, describing a room, reacting to an unexpected plan. What they are bad at is being an impartial referee of their own story, because nothing stops them from softening a consequence they just described. A game card fixes that by handing the assistant a rules system, a dice tape it did not generate and a per-turn ledger, so the judgement calls are made by the card rather than improvised.

Do I need to know tabletop RPGs to play?

No. Each card teaches its own system in the first few turns and the assistant walks you through character creation. Ironquill is deliberately small — a calling, a couple of skills, a Strain track and a clock — so a first session spends its time on the story rather than on rules lookup. If you have played tabletop before, the closest comparisons are the light narrative systems: skills matter, but a single roll rarely ends a scene.

How long is a session, and can I stop in the middle?

Sessions on this shelf run 30 minutes to about 3 hours depending on the card. You can stop anywhere: ask for a save and the assistant prints a plain-text AIGC block holding your character, inventory, clocks and tape position. Paste that into a new chat — in the same assistant or a different one — with the card, and you resume at the same scene with the same dice sequence.

Can I play with friends?

Bramblewood seats up to four; The Toll at Blackbridge, The Severed Spire and The Gilt Horologe seat two, with one person relaying the group's actions into the chat. The save format carries a second and third seat, so a party's characters all survive a stop and resume. Solo play is the default the cards are tuned for, and every route in them can be finished alone.

If you like D&D-style RPGs