loopr: Yajilin Logic Puzzles

Loopr is a beautiful logic puzzle game based on Yajilin, a classic Japanese grid puzzle originally published by Nikoli and featured in the World Puzzle Championship.

Arrow clues tell you how many shaded cells lie in that direction. Shade the correct cells, then draw a single continuous loop through every remaining cell. Every puzzle has exactly one solution, discoverable through pure logic. No guessing required.

FEATURES

Daily puzzles. A fresh challenge every day at three difficulty levels

Endless mode. Hundreds of handcrafted puzzles across easy, medium, and hard

The Gauntlet. A massive weekly puzzle that pushes your logic to the limit

Dedicated tutorial and tips. Get up to speed quickly with interactive lessons and a strategy guide

Hints. Tap an arrow clue to reveal what should be there when you're stuck

Badges and milestones. Collect achievements as you progress and track your personal bests

Streaks. Build daily streaks and chase your fastest times

Clean, minimal design with a dark theme

Accessibility options. Adjustable text size, high contrast mode, reduced animations

HOW TO PLAY

Study the arrow clues. Each arrow shows how many shaded cells are in that direction

Shade cells that must be blocked. Remember, shaded cells cannot touch each other

Draw a loop through every remaining cell. It must form one continuous, closed path

Use logic to work out the only possible solution

Perfect for fans of Sudoku, Nonograms, Slitherlink, and other logic puzzles. Whether you have two minutes or twenty, Loopr is the perfect way to exercise your brain.

If you want, I can also tighten this to be more App Store optimised or slightly more conversion-focused.