How to play

Last updated: 28 September 2026.

Every day, a new closed box is waiting for you. Look at all its faces, find the clues, work its mechanisms: the goal is to open it, as fast as you can.

Handling the box

• The arrows around the box turn it to show its six faces.
• Click a mechanism to look at it closely; the back button returns to the whole box.
• Objects you find go to the inventory; drag them where they belong. A placed object can be taken back until its mechanism is solved.
• The notebook keeps the notes and symbols found on the way.
• Some boxes hold other boxes: a box only opens once you have taken what is useful inside it.

Codes and errors

• Codes go from 1 to 9 (the dials show 0 to 9).
• Only a failed attempt at a code counts as an error (a drawer pulled too early, panels, keys): +15 seconds. Placing an object in the wrong spot is not one.
• After 3 errors on the same code, it locks for 60 seconds of play.
• No action can make a box impossible to open.

Time, stars and hints

• The timer starts with your first move on the box and stops while paused.
• 3 stars within the box’s reference time, 2 under twice that, 1 beyond; each star is worth 10 cogs.
• Three-level hints: +30 s, +90 s, then the step’s solution (+5 min, and 2 stars at most). One free hint a day on the box of the day.

Streak and ranking

• Opening the box of the day every day makes your streak longer. A streak broken yesterday can be saved once, today only, by opening yesterday’s box.
• The daily ranking only counts results verified by the server, which replays your game.
• Practice boxes, the tutorial and replayed games count neither for the streak nor for the ranking.