About the Game
Haydoku is a cozy animal sudoku puzzle — a logic game in the Star Battle / Queens family. Each level is a colorful grid of haystacks, and somewhere in those haystacks, small animals are hiding. Your goal is to find them all by pure deduction.
The rules are simple: in every row, every column, and every color region, exactly one animal is hiding (or two, in double-mode levels). Use these clues to deduce where each animal must be — then double-tap a haystack to reveal it.
What starts as a gentle 5×5 introduction becomes a deeper logical challenge: disconnected color regions, blocked stones, double-animal modes, and grids up to 12×12. With handpainted art, ambient music, and zero pressure, Haydoku is a game you settle into.
How to Play
- Tap an empty haystack to mark it as “no animal here” (a small × appears)
- Double-tap a haystack to reveal an animal hiding inside
- Use the Hint tool to highlight a logical next step
- Use the Reveal tool to automatically find one animal
- Use Clear to wipe all your marks for the current level
You have three lives per level. Reveal an animal in the wrong haystack and you lose one. Run out and the level resets — but your progress on other levels stays safe.
Watch for
- Stones — cells where no animal can ever hide
- Disconnected colors — the same color may appear in two separate spots; they still share just one animal between them
- Double-mode levels — two animals per row, column, and color region
Take your time. There’s no timer and no guessing — every puzzle has exactly one logical solution.
Highlights
- 10,000 levels — From gentle 5×5 warm-ups to 12×12 brain-benders, the difficulty ramps up at your pace.
- Pure logic, zero guessing — Every single level is verified solvable by deduction alone. If you're stuck, there's always a next step to find.
- Daily Challenge — One fresh puzzle every day. Keep your streak alive for growing rewards.
- Hints that teach — A hint doesn't just give you the answer; it highlights the exact cells that force the move, so you learn the trick.
- No timers, no pressure — Cozy farm scenery, calm music, play at your own pace.
- Works offline — Jump straight in and play anywhere — no connection needed. Your progress is backed up automatically.
