Cresset

A puzzle of signal fires

Place one fire in every row, every column and every coloured region. No two fires may touch, not even diagonally. Every board has exactly one solution and is solvable by pure deduction. No guessing, ever.

Pay once, own it — no ads, no in-app purchases, no tracking.

Light the fires

Three rules. Every board is solvable by deduction alone.

A solved 6 by 6 Cresset board Six coloured regions, each marked with its own glyph. One fire stands in every row, column and region, and no two fires touch. The board darkens to night and the fires glow.

Solve the board and day turns to night — the fires you placed are the only light.

  1. One fire per row, column and region

    Every row, every column and every coloured region holds exactly one fire. Each region also carries its own glyph, so the board reads without colour.

  2. Fires never touch

    Not side by side, not diagonally. A fire keeps all eight of its neighbours empty.

  3. One solution, no guessing

    Every board has exactly one answer and a deduction path to it. If you feel forced to guess, look again: somewhere only one option remains.

Tap a cell to cycle: empty → X → fire → empty. Undo is always there. No timer, ever.

Four ways to play

A story, a shared daily board, a fresh puzzle any time, and a road that never ends.

  • The Journey

    60 puzzles across five chapters, from desert through jungle, forest and plains to the bay. The grids grow from 6×6 to 10×10, every chapter has its own music, and a short story unfolds card by card as the flame travels on.

  • Daily puzzle

    One puzzle a day, the same board for every player worldwide. No account, no sync, no server. Build a streak; your stats stay on your device.

  • Random puzzle

    A freshly generated logic puzzle every time, with a guaranteed unique, guess-free solution. Undo anytime, no timer, no pressure.

  • Endless

    An infinite band of puzzles. Solve a section and the map scrolls on. Solved ground sinks into night and only your fires still glow. Go as far as your deduction takes you.

From day to night

Screens from the game as it ships.

  • The daily puzzle mid-solve: a ten by ten board with coloured regions, X marks and six fires placed, on a paper backdrop with signal towers.
    Daily, mid-solve. Every region has a colour and a glyph.
  • A solved board at night: the regions are dark and ten placed fires glow warm orange, each lighting the cells around it.
    Solved. Day turns to night and the fires ignite.
  • Endless mode: the left half of the board lies in night with glowing fires, the right half is still day with fresh coloured regions.
    Endless. Solved ground sinks into night behind you.
  • The Journey, jungle chapter: a board mid-solve in front of a painted jungle scene with a signal tower.
    The Journey. Five chapters, each with its own scene and music.

Why Cresset

Pure logic. No ads. No account. No tracking. Just fire and deduction.

  • Pay once, own it

    No ads, no in-app purchases, no subscriptions, no energy timers.

  • No account, no tracking

    No analytics, no third-party data. Plays fully offline.

  • Colourblind-accessible

    Every region carries both a unique colour and a unique glyph.

  • Calm by design

    A brain teaser for commutes, breaks and bedtime. Logic only, never luck.

  • Leaderboards, optional

    Anonymous leaderboards for Endless runs: a random ID, deletable in-app, off by default.

  • Two languages

    English and German, on iPhone, iPad, Android and in the browser.