Knowing the answer is only half of it.

Polymath is a trivia game about how sure you are. You stake points on your own answer before you see the question. Everyone else gets to doubt you. Knowing whether you know it is the other half.

1–10 players One screen, one table No accounts Nothing uploaded Works offline once loaded

For adults

Pub Edition →

900 questions across 15 categories and three difficulty tiers. 60-second turn clock, 20-second answer clock, doubt on, and you lose points when you get it wrong. This is the finished, tested game — version 2.3.

Best with a drink in hand and somebody who argues about rulings.

Roughly ages 7–12, with an adult

Kids Edition →

A separate 450-question bank written for children. Longer clocks that can be paused, doubt switched off unless you want it, big type, and nobody ever loses points.

An adult decides whether an answer counts. That is the point, not a limitation.

What is different about the Kids Edition

	Pub Edition	Kids Edition
Question bank	900 adult questions	450 separate questions written for children
Turn clock	60 seconds	90 seconds
Answer clock	20 seconds	45 seconds, and pausable
Default game	25 minutes, race the clock	5 turns each, turn-based
Doubt	On	Off unless you switch it on
Wrong answer	Can cost you points	Scores 0 — never subtracts
Type size	Normal	Big type on by default

The two banks are completely separate. A kids question can never appear in a pub game and a pub question can never appear in a kids game — the build refuses to ship if any question text appears in both.

Where the kids questions come from

Every one of the 450 kids questions carries a recorded factual basis stored alongside it — what the fact is and where it comes from. Anything that could not be stated with confidence was not written. The bank deliberately avoids records, rankings and "the biggest / fastest / newest" anything, because a hosted game outlives those facts and would quietly start telling children things that are no longer true.

You can download the whole bank, basis lines included, from the button on the Kids Edition setup screen. It is a plain JSON file.

Privacy, plainly

No accounts, no sign-in, no leaderboard, no server.
Nothing you do in either game is ever uploaded. There is no analytics, no telemetry and no upload endpoint in either file.
The Kids Edition makes no network request whatsoever — not one, to anybody, ever — and never carries advertising. That is enforced in the code, not just promised here.
The Pub Edition is hosted exactly as it was built, unmodified, and as built it fetches two typefaces from Google Fonts when the page opens. That is its only outbound request, it happens on that page alone, and the game works without it. Self-hosting those fonts is an open item, recorded rather than quietly patched.
The Kids Edition can keep a record of which questions were answered correctly, so difficulty can be checked later. It is off by default, it stores no names and no free text, it never leaves your device, and you can download or delete it from the end screen.
This page may carry advertising. If it does, nothing loads until you accept it, declining is a real refusal rather than a delay, and you can change your mind at any time from the footer.

Not a children's service

The Kids Edition is a game for a child to play at a table with an adult. It collects nothing, transmits nothing and requires no account. This site is not directed at children and knowingly collects no personal information from anyone of any age.