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The Stacklumen platform is in private alphaSee the products

Stacklumen Play

Fourteen free games: six daily puzzles, four for your eye for type and layout, and four arcade runs. Sign in to play; your streaks and bests are kept on your account, on every device.

Sign in to play Every game

Daily puzzles

A new one each day for everyone, the same puzzle wherever you play it.

Lumenwords Find the five-letter word in six guesses. New every day · about 3 min Lumen Mini A five-by-five crossword, new every day. New every day · about 4 min Beam Turn the mirrors until light reaches every target. New every day · about 4 min Hexact Name the colour in hex, in six guesses. New every day · about 3 min Four by Four Sort sixteen words into four hidden groups. New every day · about 5 min Hive Make words from seven letters. Every word uses the centre. New every day · about 10 min

Skill games

Type, layout and CSS, played by eye and by hand.

Kern Space the letters by eye. Score against the typeface. Endless runs · about 3 min Pixel Perfect Match the box to the ghost, by eye, to the pixel. Endless runs · about 3 min Flex Fu Set the flex properties to land every block on its target. Levels · about 6 min Selector Golf Write the shortest selector that picks only the lit elements. Levels · about 8 min

Arcade

Quick runs, one more go, a best score to beat.

Deploy Dash Get your commit across the pipeline to production. Endless runs · about 4 min Stacker Drop each layer onto the last. Overhang falls away. Endless runs · about 2 min Lumen Line Steer a line of light. Collect sparks, avoid the copy. Endless runs · about 3 min Bug Breaker Bounce the ball, break every console error. Endless runs · about 4 min