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Harry's Planets

Free educational browser game by chanch · released 2026-10-26

Harry's Planets cover art
Play Harry's Planets on itch.io

About Harry's Planets

Harry's Planets is a cozy 3D space adventure from developer chanch, made for young children and the grown-ups beside them. A small astronaut climbs into a chunky rocket and sets off on a trip where every landing brings a quick learning task: adding two groups of stars with answers from zero to five, removing stars without going below zero, or supplying one missing letter in a pictured three-letter word. Only three big answer tiles appear at once, so the screen stays calm. There are 31 destinations, the eight planets, five dwarf planets and eighteen selected moons, and every one is open from the beginning, so players can wander in any order they like. Nothing here can be lost: no scores, timers, lives or game-over screens. A wrong tile simply comes back for another try, and after a few attempts a colour hint quietly appears. Controls work with touch or a mouse. Drag a tile into the empty slot, or tap a tile and then the slot. Tapping stars speaks the count, while buttons repeat the prompt, jump to the solar system map, shorten the rocket flight, or mute sound. A settings screen holds music and voice volume, reduced motion, activity choice and a confirmed progress reset. The art is original low-poly 3D with painted textures, and giant planets get fantastical cloud platforms. Sizes and distances are simplified for play. Portrait and landscape layouts are both supported, with large touch targets, prerecorded narration and gentle original music.

Quick facts

Developer
chanch
Genre
Educational
Price
Free
Platform
Web browser
Made with
Godot

Highlights

Who it is for: Young children and the grown-ups playing with them will enjoy this, along with anyone after a calm, pressure-free space-themed learning game.

Screenshots

Harry's Planets screenshot 1Harry's Planets screenshot 2Harry's Planets screenshot 3Harry's Planets screenshot 4

Questions about Harry's Planets

Is Harry's Planets free to play?

Yes. It is a free browser game made with the Godot engine, so there is nothing to buy before you start playing.

How long does a session last?

No average session length is listed. Play is built from short individual puzzles with no timers, and at the last destination you can choose another trip or return to the map.

What controls does the game use?

Touch or mouse. Tap a planet card to pick a destination, then drag an answer tile into the empty slot or tap the tile and then the slot. Drops are forgiving.

What kind of game is it?

An educational singleplayer game tagged cozy, relaxing, family friendly, kids, space, math, spelling, low-poly and touch-friendly, with large touch targets and portrait or landscape layouts.

What is it built with?

It is made with Godot, and the planets, astronaut, rocket and props are low-poly 3D models with original painted textures.