LumistackStack your first word
Lumistack

A word puzzle played like solitaire

Flip cards, work out which topic each word belongs to, and stack it there before your moves run out.

Store listings coming soon

Stacky, the Lumistack card mascot

How it plays

Three moves, one rule: every word goes to its topic.

  1. Open a topic card

    Open a topic card to start its group. Each group collects the words that belong to that topic.

  2. Tap a word

    Tap a word card and it moves into the group it belongs to.

  3. Clear the group

    A full group clears and uncovers the cards underneath. Clear every group before your moves run out.

What is inside

Short sessions, fair levels, and a new puzzle every day.

160+ topics

From fruit and weather to volcanoes and pottery. Later levels hide the topic you need under cards that could fit somewhere else.

A Daily Puzzle

The same puzzle for everyone, every day. Keep your streak going. You get a free undo each day, and more as the streak grows.

Duels with a friend

Play a board, then share its code. Your friend plays the same board, and you compare moves and time.

Stack your first word

No ads. Every level can be won without paying.