Crowd Source

Make your best guess at a tricky quantity — then face a hidden crowd whose average is uncannily accurate, and try to beat it.

How to play

Each round asks you to estimate a real quantity. After you submit, a hidden crowd of 200 guessers weighs in and its average is revealed alongside the truth. You score big by landing closer to the true value than the crowd's average — a hands-on demonstration of the wisdom of crowds. A number line shows you, the crowd and the truth side by side.

• Five questions per game with a running point total.
• The crowd's average usually beats almost every individual guesser.
• You also see what percentage of individual guessers you beat.

Controls

• Desktop: type your estimate and press Enter or click Submit.
• Phone & tablet: type with the keypad and tap Submit — fully touch-friendly.

Game modes

• Daily: a shared seeded set of questions.
• Practice: fresh randomized questions any time.

Tips & strategy

• Anchor on something you know and scale from there rather than guessing blind.
• Avoid extreme answers — the crowd's averaging quietly punishes wild outliers.

What you'll learn

Crowd Source pits your judgment against the aggregated wisdom of a simulated crowd, teaching when many guesses beat one.

• Skills: estimation, aggregation, the wisdom of crowds
• Best for: roughly grades 7–12 (ages 12+)
• For parents & teachers: when the crowd knows better than the expert.

About Crowd Source

Crowd Source is an estimation game that pits your judgment against the aggregated wisdom of a simulated crowd. It's an original free browser game made for PlayPendium.

A free, original browser game on PlayPendium — no download, no install. Browse all games →