Crack the vault. Every steel wheel has one glowing notch. Roll each notch onto the bright bolt line across the middle. A wheel on the line turns green; when every wheel is green, the bolts slam back.
Drag a wheel up or down to roll it, or tap above or below the line on a wheel for one step.
Brass gears link wheels. Rolling a wheel also rolls the one its gear's arrow points to: the same way, the opposite way, or ×2. Press a wheel to see which others will move.
Moves: the brass plate on the door shows your moves, the budget and the lock's par (the fewest moves). Open it at par for a Clean Crack ×1.5. Run out of moves and an alarm trips: the lock opens itself to show you the answer.
The clock starts at 75 s. Each lock opened adds 20 s, each Clean Crack 10 s more. If it runs out, an alarm trips. 3 alarms and the run is over.
17 locks: each new kind of gear gets a short first lock, then a harder one.
Keys: ←/→ pick a wheel · ↑/↓ roll · Z undo · P pause · M mute