Quiz Night

Snap-Apple Night: Halloween Trivia

A Halloween quiz night for one player or up to four teams at one screen: 25 trivia questions on a five-category board, every answer and its source sealed before play, and a host told to wait until every team has answered.

Players
1+
Length
20–45m
Ages
All ages
Version
1.0.0
Updated

Works with ChatGPT · Claude · Gemini. Free, no signup.

Open in ChatGPT Open in Claude

Opens ChatGPT or Claude with the play prompt ready; press send if it hasn't started. Same link on your phone as on your desktop. Another app? Copy the play prompt into it. This game needs a chat that can open links: its answers stay in a sealed file on this site. What works where.

No web access, or want it as an installed app?
Add to Claude (Skill)

The game card is every rule of the game, about 13k characters, but not its answers: those stay in a sealed file on this site, so even pasted, Snap-Apple Night: Halloween Trivia needs a chat that can open a link. Pasting the answers in yourself would spoil it. The Skill installs Snap-Apple Night: Halloween Trivia into Claude on any plan: download it, then turn on code execution under Settings → Capabilities and add it at Customize → Skills → + → Upload a skill.

Snap-Apple Night: Halloween Trivia is a free quiz game you play inside ChatGPT, Claude, or Gemini. 25 Halloween trivia questions, hosted by your AI for one player or a few teams, with every answer and its source fixed before play. 1 or more players, 20–45m a run. No signup and no app — open it in your assistant, or paste the play prompt anywhere else.

How to start

  1. Open it in your AI. Tap Open in ChatGPT or Open in Claude and press send, or paste the play prompt into any assistant that can open links. Start by typing.
  2. The night loads. The host loads the card and its sealed key, reads you the SHA-256 commitment, and asks whether you are playing solo or as two to four teams.
  3. Pick, write, send. Teams take turns to pick a question by category and points. Every team writes its answer down, then one message sends them all, each after its team name; the host rules each answer from the key and names its source.
  4. Verify the seal. After the night, rebuild the SHA-256 hash of the revealed key at aigamecards.com/verify to confirm no answer moved.

Questions

Can ChatGPT host a trivia night?
It can play game show host, but plain chat can make answers up and stick to them, and in voice mode it has given answers away while children were still thinking: one family's football quiz got an invented hat-trick, an "I'm sure!", and answers read out before the children could discuss them. Here every answer, the other forms it accepts, the near misses it refuses and a source for each were sealed under a SHA-256 hash before release. The card tells the host to rule only from that key, to name the source with every ruling, to answer no question from its own knowledge, and to rule on nothing until every team has answered. The seal shows the key did not move; it cannot show that every ruling was right.
What does the seal prove, and what doesn't it?
It proves the answer key did not change: its SHA-256 hash was published before release, and after the night you can rebuild it from the revealed key at aigamecards.com/verify. It does not prove the host ruled every answer correctly, so each ruling names the key's answer and its source for you to check, and the card tells the host to correct any ruling that misapplied the key. The key is a public file: it is fixed before play and checkable after, not hidden from a player who goes looking for it.
How long is it, and how many can play?
Twenty to forty-five minutes for 25 questions. Play solo, or as two to four teams of any size at one screen. Every team answers every question, written down first and sent together in one message, so no team sits out a turn. A tie at the top goes to the Candle-End: up to two sealed questions with a year for an answer, closest wins. Say "save" between questions for a code that resumes the night in a new chat.
Is it a good family Halloween quiz for children and classrooms?
The content suits all ages: Halloween customs, festivals around the world, classic books, bats, owls and spiders, and sweets, with nothing gory. Difficulty is another matter. The one-pointers suit primary-school children, several five-pointers are hard for adults, and about a third of the points are on British and Irish customs, so the host suggests mixing ages on every team. Teams play as Bats, Ghosts, Owls and Toads, so the game never asks for anyone's name. It assumes an adult at the keyboard.
Does the chat have to open a link, and can we play by voice?
It has to open a link. The host fetches the sealed key from aigamecards.com when the night starts; pasting it in yourself would show you every answer. Not every app can, and it changes; aigamecards.com/launch-matrix shows which currently do. Start the night by typing. Once the key is loaded you can switch to voice in the same chat if your app allows it, with one adult speaking the teams' written answers. No account beyond the chat app you already use, and nothing to buy.

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