Tents and Trees
Logic Puzzle Brain Game

A camping puzzle solved with numbers and logic alone. No luck, no timer. Every board has exactly one solution, so you can deduce your way to the end without a single guess — and it all plays offline, with no sign-in.

⛺ Key features

Three rules, that's it. One tent beside every tree, no two tents touching even diagonally, and the numbers outside each line say how many tents it holds. Simple rules — the thinking gets deeper as the board grows.

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Hints that don't spoil it

Stuck? The first press tells you only where to look. Press again and it fills the square and explains why it was forced.

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Nine solving techniques

Trees with one possible spot, squeezed cells, empty-block counting, hypothesis testing. You get better by learning them through hints.

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Six campsite maps

Forest lakeside, wave beach, autumn valley, red canyon, snow plateau, aurora tundra. Each solve colors a campsite and leaves footprints.

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Daily puzzle

A date-seeded board everyone plays together, with streaks, a month calendar, a past-days archive and an evening reminder.

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Mistake log & weak-spot drills

It collects your common errors — touching tents, exceeding a row count — and serves only the boards that need that technique.

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Hypothesis layer

Try "what if a tent went here?" in purple, then commit it if it holds or discard the whole branch if it doesn't.

✅ What's good about it

👍 Who it's for

How-to guides

See all guides →

🔒 No account, no data collection

It plays fully offline with no sign-in. No personal data is collected and every record stays on the device.

Every board has exactly one solution — boards that can only be guessed at are never generated, and even puzzles you build yourself are checked for a unique solution before they are saved.

Fill in today's campsite ⛺

Five minutes on the commute, one board before bed. A logic puzzle that loosens up your head.

📲 Get it on Google Play