Click to playTap to playGlowdoku · runs in your browserPlays in portrait · touch controlsGlowdoku
Place fireflies, solve moon clues, and bring colourful gardens to life. A little light. A little logic.
A little light. A little logic.
Welcome to Glowdoku, a colourful logic puzzle where every firefly needs a place to glow.
Place one firefly in each row, column and coloured garden patch. Give them room: fireflies cannot touch, even diagonally. Then follow the moon clues. Exactly one tile in each matching pair must hold a firefly, connecting deductions across the board.
Cross out possibilities yourself and watch each discovery lead to the next. Correct placements flutter into life, and the whole garden celebrates when you solve it.
Explore 36 original puzzles on boards from 5×5 to 10×10. Different garden shapes and moon clues keep the challenge varied, while a shared daily puzzle gives everyone the same garden to solve.
Start each attempt with three hearts. Need a nudge? Hints show a faded firefly or X and explain why it belongs there. Choose Apply hint when you're ready, or keep thinking. A separate firefly helper can fill a correct tile.
Collect dewdrops, climb the leaderboard, and find your own solving rhythm with touch or keyboard controls.
Find their places. Let the garden glow.
- Controls
- Keyboard, Touch
- Plays on
- Computers, phones and tablets
- Screen
- Portrait
- Updated
- 3 Nov 2026
- Rated
- General
How to play
Place one firefly per row, column and coloured patch. Fireflies cannot touch, even diagonally. Exactly one tile in each matching moon pair must hold a firefly. Tap to mark X; double-tap to place. A wrong placement costs a heart. Hints explain a move; choose Apply hint when ready.
High scores
Credits
Built with
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