Mind Loft
Word · September 18, 2026Sep 18

Crux

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Interlocking words, no clues: just four categories to guide you. Guess real words to reveal the letters.

About Crux

Crux is a free daily word puzzle from Mind Loft, a clueless crossword. Eight hidden words (twelve in the Sunday Edition) interlock in a compact grid, and the only hints are four visible categories; working out which words belong to them is the puzzle.

Guess real words to reveal letters: dark tiles lock a letter into its square and every crossing, yellow tiles mean the letter belongs elsewhere in the word. The whole board shares one guess budget, and a single submit files each solved word under its category: a point per solve, a point per correct placement.

A new Crux puzzle arrives every day, with a bigger Sunday Edition each week. No app, no signup. Play free in your browser and compare score, guesses, and time on the daily leaderboard. Prefer scrambles? Try Garble, our daily word scramble.

Crux, in short

How do you play Crux?

Eight words interlock in an empty grid, and four category hints are the only clues you get.

Is Crux free to play?

Yes. Crux is free to play in your browser on Mind Loft, with no app to install and no account required.

When does a new Crux puzzle come out?

A new Crux arrives every day at midnight Eastern time, and Sundays bring the Sunday Edition, the biggest or hardest board of the week.

What kind of puzzle is Crux?

Crux is a daily word game from Mind Loft: a clueless crossword. It is part of the daily word games lineup.

Can I play past Crux puzzles?

Yes. Every past Crux board is in the daily puzzle archive, along with the day's standings.

What other daily word games does Mind Loft have?

Emcee, Garble, Links and Stet, among others. The Word games page lists every one, with a new board for each every day.