Twelve ways to make them work for it.
Every format runs in the browser, checks its answer on the server and works with a keyboard where the mechanic allows it.
What is a challenge lock?- Numeric codeMost usedThe default for anything a player can read as digits: a date, a count, a room number, a result.Learn more →
- Direction (4 ways)Movement expressed as arrows, with four directions.Learn more →
- Touch patternA shape drawn across nine dots, the way a phone unlock works.Learn more →
- PasswordMost usedA word or short phrase.Learn more →
- Direction (8 ways)The same idea with diagonals, which doubles the space and lets a sequence trace a recognisable shape rather than a path..Learn more →
- Colour sequenceAn ordered sequence of colours.Learn more →
- SwitchesAn unordered set: some switches up, the rest down.Learn more →
- Username and passwordTwo fields instead of one, which lets you split a secret across two clues or two people.Learn more →
- Ordered switchesThe same switches, but the order counts.Learn more →
- Musical sequenceA melody to listen to, then play back on a piano, or a tune to recognise and name.Learn more →
- Grid 4x4Sixteen cells, of which a handful are right.Learn more →
- Real GPS positionThe player's real position, verified against a coordinate and a radius.Learn more →
Two more come with the Event Pass or Pro: Sudoku · Wordle. Free to play, like every format here. Pricing →