Constellations - Star Sudoku

Zen Star Sudoku: place the stars, reveal your constellation.

Constellations is a logic puzzle game inspired by Sudoku, also known as "Star Battle", "Two Not Touch", "Queens" or "Starstruck": your job is to find the right cell for each star, row by row, column by column, region by region – without ever letting one star touch another. Every puzzle has a unique solution that can be found through pure deduction – no guessing required. As a reward, each solved level reveals its own constellation, drawn just for you.

A relaxing, stress-free puzzle game with no timer and no pressure. Perfect for unwinding before bed, during a break or on the go, with an unlockable Speedrun mode for those who love a challenge. Discreet, non-intrusive ads, so you can stay focused on your sky.

⭐ HOW TO PLAY

Exactly one star per row, per column and per colored zone.
Two stars can never touch, not even diagonally.
A single tap places a cross to rule out a cell; a double tap places a star there.
Every level starts with a free hint: a star already placed to get you going.
A few mistakes are allowed in each level before you have to start over.

🌙 ZEN MODE BY DEFAULT
No forced timer and no score constantly on screen: just you, the grid and your reasoning, at your own pace.

🏁 SPEEDRUN MODE
Want more thrills? Race against the clock and try to solve each grid as fast as you can.

🌑 BLINDFOLD MODE
A brand-new way to play: no more crosses to rule out cells, only your deduction guides where the stars go.

🌟 ENDLESS PROGRESSION
Hundreds of sudoku-style puzzle levels, from the simplest grids to the largest ones for seasoned strategists – the difficulty grows with you.

📅 DAILY CHALLENGE & LOGIN STREAK
A new puzzle every day, and rewards that pile up as long as you keep coming back.

✨ YOUR OWN SKY
Revisit solved levels at any time from the collection, and rediscover every constellation you have revealed.

🏆 LEADERBOARD & ONLINE SAVE
Compare your progress with other players and pick up your game on any device thanks to Google Play Games.

No connection required to play, no time pressure: just you, your eye for detail, and a sky to piece together, star after star.

A free-to-download, addictive brain-teaser, perfect for fans of Sudoku, Star Battle, puzzles and zen brain-training games.