About ChillDoku
A cozy Antarctic logic puzzle starring the Curious Penguins.
Every board has one rule set and one answer: place exactly one penguin in each row, each column and each irregular ice patch — and penguins never touch, not even diagonally. From there it is all deduction. No timers pushing you, no lucky guesses, no move you could not have worked out.
SOLVE IT, DON'T GUESS IT
Every puzzle is generated with exactly one solution, and checked before you ever see it. If you get stuck, you missed something — and the hints will show you which technique finds it, rather than just filling in a square for you.
Boards grow from a gentle 5x5 to a genuinely hard 10x10, across five difficulties from Easy to Extreme. The early levels teach the patterns. The later ones assume you know them.
999 LEVELS ACROSS SEVEN REGIONS
Follow the expedition trail through Snowy Shore, Iceberg Bay, Frozen Forest, Aurora Valley, Emperor Mountain, the Lost Research Station and finally the South Pole — each one hand-painted pixel art you unlock as you go.
SIX WAYS TO PLAY
- Expedition — the main campaign, 999 levels
- Daily Puzzle — a fresh handcrafted board every day, with streaks
- Endless — infinite generated puzzles at any size you like
- Speed Ice — beat the clock, chain your wins
- Expert Expedition — the hard stuff, straight away
- Chill Mode — no hearts, no fail state, just you and the ice
COLLECT THE COLONY
26 penguins to discover, each with their own art and story, plus 11 collectible expedition postcards. Choose who joins you on the ice and who walks the map with you.
PLAYS ANYWHERE
The campaign and endless mode work completely offline — on a plane, on the subway, in the middle of nowhere. Nothing to log into, no account required, and your progress is saved on your device.
MADE TO BE COMFORTABLE
- Dark and light themes, following your device
- Colour-blind friendly region patterns
- High contrast and large UI options
- Turn mistake checking off entirely if you would rather play without hearts
- Original soundtrack, "404 Dreams Found" by Curious Penguins
If you like Star Battle, Queens, nonograms, sudoku or any pen-and-paper deduction puzzle, this one is for you — with better penguins.
Artwork and music by Curious Penguins.
