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01
The Sleepyhead School
Six short lessons on small boards. Each teaches a single trick, and you pass it by making the move yourself. Stuck? A hint points out mistakes first, then explains the next move in one sentence.
Napdoku: Cozy Brain PuzzleTuck the critters in
A cozy logic puzzle: one critter in every row, column and patch — and nobody may wake anybody up.
Get the app and receive a golden skin →
- 150levels
- 0purchases
- 6lessons
- 2.7 MBoffline
What is Napdoku?
Napdoku: Cozy Brain Puzzle is a free logic puzzle game with cute sleepy animals. As in Meowdoku cat puzzles, LinkedIn Queens and Star Battle, you place one critter in every row, column and colored region, and no two may touch. No numbers, no math and no guessing: a relaxing brain teaser you can play online in the browser or offline on Android.
Rules in a minute. Logic for a long time.
- Exactly one critter sleeps in every row and every column.
- Exactly one sleeps on every patch of the quilt, too.
- Critters never touch, not even at a corner, or they wake each other up.
A program checked every board: each has exactly one solution, and you get there by reasoning, not guessing.
Try it right here
This is the real first level. Tap a cell twice: a cross, then a critter.
Critters left to tuck in: 2
Five sleepy friends
Five chapters, five critters and a new season outside the window. Boards grow from 5×5 to 9×9.
Fox cubChapter 1 · Warm beginnings
BunnyChapter 2 · Carrot blanket
PandaChapter 3 · Bamboo dreams
HedgehogChapter 4 · Autumn doze
RaccoonChapter 5 · Moonlit night
02
A new puzzle every day
One board for everyone by local date, a streak, and a cozy day off that saves it if you miss a day. Share your result: the picture shows the day’s quilt, never the answer.
03
The sleepy room
New stars and dailies pay threads. Spend them on things for the room: a floor lamp, a bean bag, a dreamcatcher and twenty more. Replaying a level pays nothing, so there is no grind.
A gift for installing the app
Play on the site and the game gives you a personal code. Enter it in the Android app and your critters get the “Golden sleepyheads” skin. Already have it? You get a random rare skin instead. Your progress moves over with a code too.
- Play in the browser: the gift window shows your code.
- Install Napdoku on your phone.
- In the app: “Gifts” → “Enter a code”.
Android: offline and ad-free
The game plays offline and keeps your progress on the phone. No purchases and no account. The app shows ads; the videos are optional.
⤓Download APKGoogle Play — coming soon
Or play right in your browser on a phone, tablet or computer — progress is saved on the device. Play in browser →
- Download the APK file to your phone.
- Open it. If Android asks, allow installing apps from your browser.
- Tap Install, then open Napdoku.
Questions
Is Napdoku free?
Yes, it is free, with no purchases or subscriptions. The Android app shows ads and offers optional videos for bonus threads; the browser version has no ads.
Do I need the internet?
No. The game works offline. It goes online for optional progress sync and, in the Android app, to load ads (ads do not load offline).
What happens if I make a mistake?
Nothing bad: there are no lives. Undo it, and a hint shows where it is. The “no mistakes” star is just a bonus.
Are there boards where you have to guess?
No. A program checked all 1,360 boards: each has one solution you can reach by reasoning.
Is it colour-blind friendly?
Yes. Patches differ in pattern as well as colour.
Which devices does it run on?
Android 7.0 or newer, and in the browser on any modern phone, tablet or computer.
How is Napdoku different from Sudoku?
There are no numbers and no math. You place one critter in every row, column and colored patch, and critters may not touch, not even diagonally.
Is Napdoku like Meowdoku or LinkedIn Queens?
Yes, it uses the same kind of grid logic: one per row, column and region, and no touching. Napdoku has no lives and no purchases, and its hints explain each move. The browser version has no ads either.
Do I need math skills to play?
No. Napdoku is pure logic: colors, rows and columns, nothing to count.
How do you play Napdoku?
Tuck one sleepy critter into every row, every column and every colored patch of the quilt. Critters may not touch, not even at a corner. Tap a cell once for a cross, twice for a critter.
How many levels are in Napdoku?
150 levels in five chapters, from 5×5 to 9×9 boards, plus a new daily puzzle every day and a free-play mode with 480 more boards in three difficulties.
Is Napdoku safe?
Yes. There is no chat and no account, and the game asks for no access to contacts, camera, microphone or location. Your progress stays on your device. The Android app shows Google AdMob ads; the browser version has none.
Does Napdoku use AI?
There is no AI chat or AI opponent in the game. The boards were made by a program that checks every one has a single solution you can reach by logic.
What do the crosses do?
A cross marks a cell where no critter can sleep, like a pencil note in other puzzles. Swipe across cells to cross out many at once, or let auto-cross do it after every critter.
Are there hearts or lives?
No. Mistakes cost nothing: undo any move as often as you like, and a hint shows where the mistake is.
Can I play Napdoku online?
Yes. Napdoku runs in the browser on a phone, tablet or computer, with nothing to download. On Android it also works offline.
Is Napdoku a cat puzzle game like Meowdoku?
Napdoku is a doku-style animal puzzle with the same grid logic as Meowdoku cat puzzles. Instead of cats, five sleepy critters take turns: a fox cub, a bunny, a panda, a hedgehog and a raccoon.
Is Meowdoku free?
Meowdoku is free to download, and its Google Play page lists ads and in-app purchases. Napdoku is free too, with no purchases at all; ads appear only in the Android app, not in the browser.
Is Napdoku the same game as Meowdoku?
No. Napdoku is an independent game by another developer. It uses the same classic puzzle rules, also known as Queens or Star Battle, with its own critters, lessons and hints.