Tabletop RPG
The Severed Spire
A mile-high tower, cut from its mountain, hangs in open sky and sinks an inch a day; your company climbs what is left.
The Severed Spire is a free tabletop role-playing game you play inside ChatGPT, Claude, or Gemini. 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 players, 1.5–3h a run. No signup and no app — open it in your assistant, or paste the play prompt anywhere else.
- Players
- 1-2
- Length
- 1.5–3h
- Rating
- 12+
- Version
- 1.1.0
Works with ChatGPT · Claude · Gemini. Free, no signup.
Opens your assistant with the game loaded. ChatGPT usually runs it straight away; Claude waits for you to press send. Same link on your phone as on your desktop. Playing in Gemini? Tap Copy the play prompt and paste it into a new chat. What works where.
No web access, or want it as an installed app?
The game card is the entire game — every scene, rule and answer, about 12k characters. Paste it when your assistant can't browse the web. The Skill installs The Severed Spire into Claude on any plan: download it, then turn on code execution under Settings → Capabilities and add it at Customize → Skills → + → Upload a skill.
How to start
- Open your AI. Start a new chat in ChatGPT, Claude, or Gemini. No paid plan required.
- Load chapter one. Paste the opening chapter's starter prompt. The AI boots Ironquill and sets your company at the tower's severed base.
- Climb the spire. Describe what your climber does. The AI narrates, rolls in the open — code dice or the pre-rolled tape — and voices the lift-crews, the Guild, and whatever circles in the cloud.
- Save between chapters. Take a save code at each chapter's end. Paste it to continue with your company and choices intact.
Questions
- How long is the campaign?
- Chapter 1 is available now and runs about 90 to 180 minutes. It is the first of a planned three-chapter campaign; Chapters 2 and 3 are not out yet. Each chapter is a self-contained climb through one tier of the tower, and a save code at the end of Chapter 1 will carry your company and their choices into the next chapter when it releases.
- Do I need to play The Toll at Blackbridge first?
- No. The Severed Spire stands alone and teaches what you need as you climb. Blackbridge is a shorter tutorial for the same Ironquill system, so it is a gentle warm-up, but it is not required.
- Can I play the whole thing solo?
- Yes. Built for one or two players, the campaign runs solo with the AI as game master handling every character but yours. With two players you share a company and split the tower's decisions between you.
- What carries between chapters?
- Your characters, their injuries, gear, and the choices you made. A save code at the end of each chapter encodes that state; paste it to begin the next chapter, in the same AI or a different one, with your history intact.
12+ — a fatal fall is possible for player characters, and a woman is cut loose and left to die; peril and cold, no gore.