Thirteen Hours is a free browser clock-chain puzzle. Tap the active clock so its hand shoots into the next clock before time runs out. Clear all clocks on a level, earn stars, and open more packs. About ~30 KB, no install, no account.
Want canvas table tennis instead? Try Classic Pong.
Tap clocks in a chain before the timer ends. Progress mode has 60 levels; infinite mode keeps spawning clocks. Adapted from Jorge Rubiano's js13k 2024 entry (MIT). About ~30 KB.
Click or tap the active clock. Progress saves stars on this device under ftol:thirteenhours.
Thirteen Hours is a free browser clock-chain puzzle you can play without an account or install. Press Play to load the ~30 KB game in a same-origin iframe, then tap the active spinning clock so its hand chains into the next clock before the timer ends.
Key features
- Progress mode with 60 levels and star gates.
- Infinite score mode that respawns clocks.
- Tap or click the active spinning clock to chain shots.
- About ~30 KB after Play; progress saves under ftol:thirteenhours.
- Adapted from Jorge Rubiano's MIT js13k 2024 entry.
When to use each mode
Pick Progress for a structured climb through 60 levels, where the stars you earn gate the later packs. Pick Infinite instead to chase a high score with no end point, on a board that keeps respawning clocks after each clear.
Privacy and data handling
Progress and theme color stay on this device under the ftol:thirteenhours key. Nothing else leaves this device except the initial page and game files served from this site.
About the game
Thirteen Hours is adapted from Jorge Rubiano's MIT js13k 2024 entry. The lobby carries a theme color picker, and a level selector tracks the star requirements across each pack.
For more free browser games, open the games hub.
Frequently Asked Questions
What is Thirteen Hours?
A free browser clock-chain puzzle: tap the active clock so its hand hits the next clock and clear the board before the timer ends.
How do I play?
After Play loads the lobby, choose Progress (60 levels) or Infinite. Tap or click the highlighted clock to fire its hand into the next target.
What are stars for?
Clearing a level with time left awards a star. Later level packs ask for more stars before they open.
Is progress saved?
Yes. Cleared levels and theme color save on this device under the ftol:thirteenhours key. Nothing is uploaded.
How big is the download?
About ~30 KB of HTML, CSS, and JavaScript after you press Play.
Does it work on a phone?
Yes. The layout is built for a tall phone frame and accepts tap input.
Is this open source?
Yes. Adapted from Jorge Rubiano's js13kGames 2024 entry under the MIT license. This site build adds noindex, namespaces localStorage to ftol:thirteenhours, strips the service worker, and ships LICENSE plus CREDITS.