Inner Clock

A stopwatch that hides itself and a tap button. That is the whole setup, and it is surprisingly hard to be good at.

Start with the classic: the timer vanishes after three seconds and you try to stop it at exactly 10.00 seconds. You get your error to the millisecond, and you can retry as often as you like. After that, every day brings five new time-sense puzzles (the same five for everyone, with a score and a row of colored blocks you can copy and share), and the Challenge Road has 36 levels across six worlds, each introducing new ways to test your sense of time.

Count down in your head, split six seconds into three equal parts, repeat a rhythm you heard once, tap on the one beat that goes missing, predict where two balls will meet behind a cloud, catch a falling stone as it lands, follow a speeding-up heartbeat, or stop a clock whose hands run fast and slow. A ghost replays your best run so you can see where you were early or late.

Features

• 10-second classic with millisecond error and a personal best
• Daily challenge: 5 puzzles, one attempt, shareable result and streak
• 36 Challenge Road levels, 3 stars each, 12 modes beyond the basic five
• Practice mode for any puzzle type, with your recent scores
• Unlockable ink colors for the big button
• English and Chinese, switchable in-game

Controls

• Mouse: click or hold the big round button in the lower half of the screen.
• Touch: tap or hold the big button.
• Keyboard: Space for the button. In the two-hand rhythm levels, F and J act as the left and right buttons.

Made with AI-assisted tools (code, art and audio generated with AI, then curated and tested by the developer).