🪐Planet Detective
Game #198SpaceAges 8–12

A secret world is hiding in space. Follow the clues and find it!

Sparky's getting today's puzzle ready…

Planet Detective — a planet quiz for kids

Planet Detective is a free planet quiz that turns kids into space sleuths: a secret world is hiding somewhere in the solar system, and clue by clue they work out which one. It's ad-free, sign-up-free, and there's a new mystery every day — perfect for space-mad ages 5–12.

How to play Planet Detective

  1. Guess a planet or moon. Each guess compares it to today's secret world.
  2. 🔼 the answer is farther from the Sun / bigger; 🔽 closer / smaller; ✅ a match.
  3. 🔥 close · ❄️ far on distance from the Sun. The secret is always a planet, Pluto, or the Moon!

Example: Guessed Earth → distance 🔼, size 🔼 — try something farther out!

Questions about Planet Detective

Is Planet Detective free?
Yes — fully free, with no ads and no sign-up. A new space mystery is ready every day.
What ages is the planet quiz for?
It's made for kids 5–12. Clues start broad and get specific, so younger children can join in while older ones race to solve it fast.
What is a planet quiz?
A planet quiz asks you to identify planets and worlds from facts about them. Planet Detective drips out clues about size, rings, moons and distance until kids can name the hidden planet.
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