Nodal Puzzles

Nodal Puzzles — Five calm, handcrafted logic puzzles. One cozy collection.

No accounts. No timers forcing you. No internet required. Every puzzle is generated on-device, uniquely solvable, and rated by the same human deduction that powers your hints — so you're never asked to guess.

Meet the crew and pick your puzzle:

👑 Corgi Crowns — with Clive the Corgi
One corgi per row, column & colour region. No two touch — not even diagonally. Dots mean “no corgi here.” The classic star-battle logic, now 100% corgi.

🐜 Ant Trails — with Dot the Ant
Help Dot get home. Draw one continuous trail that visits every cell exactly once, hits the numbered checkpoints in order (1 → 2 → 3 …), and never crosses a wall. The Hamiltonian path puzzle, made tactile.

✨ Constellation — with Sparky the Firefly
A night sky, two fireflies per row, column & region. Fireflies never touch, even diagonally. Place dots to eliminate, stars to shine — then watch the constellations connect.

🦎 Kami's Shades — with Kami the Chameleon
Kami paints the wall in rectangles. Every patch holds exactly one clue number = its size. Drag from the clue to paint the rectangle. Tall, Wide, Square or Mystery — number + icon lock the shape. Cover every tile, no gaps, no overlaps.

🐧 Island Hoppers — with Pip the Puffin, Postmaster
Pip hops islands to deliver supplies. An island's number = how many bridges leave it. Tap an island and drag to the next — tap the bridge again to double it. Connect them all, no bridges crossing. The beloved Bridges logic, now an archipelago.

Why Nodal Puzzles?

• Truly offline-first. Play on a plane. Daily puzzles use the same seed for everyone — no server needed.
• Fair difficulty. Easy / Medium / Hard / Expert — rated by deduction techniques, not random. The same solver verifies uniqueness, rates difficulty, and teaches you via hints.
• Learn, don't spoil. 3 free hints + one rewarded reveal per puzzle. Hints highlight why (because cells) and what (action cell) — you learn the technique.
• Daily Collection + 7-day streak. Solve any puzzle daily to keep your streak and unlock rare mascot skins. Cosmetics only — never pay-to-win.
• Calm by design. 4 themes (Calm Paper default) with Light & Dark, all switchable instantly. Region fills are generated in OKLCH at fixed lightness — no region looks heavier, and one ink colour passes 7:1 contrast on every fill.
• Accessible. Distinct Regions textures, Bold Walls / Orbits / Vine, Distinct Vines toggles — structure, not just colour.
• Respectful ads. Small banner on Hub & Play only. Rewarded video is only for +1 bonus hint after your free hints. First banner appears after 15
solves.
One app, five worlds, infinite puzzles. All generated on your device. All yours.
What's Inside:
5 original games at launch — Corgi Crowns, Ant Trails, Constellation, Kami's Shades, Island Hoppers — plus more on the way. One unified progression, one settings screen, one calm place to think.

No account required. Just open and play.