Pier puzzle
Tideglass
Hold the glass
Arrow keys spin the wooden dial. Gravity always pulls down. Roll the sea-glass marble into the brass cup without letting it slip through a rim gap.
Left/right or A/D to spin. R resets.
One gap, one cup. Ease the marble in before it finds the drop.
Pier manual
Tideglass
How the dial works
Tideglass is a physics puzzle on a spinning wooden pier dial. A sea-glass marble sits on the planks under real gravity. You never tilt the camera; you spin the maze itself with the arrow keys. Gaps in the rim open onto deep water, so a greedy spin dumps the marble over the edge.
Objective
Roll the marble into the brass cup on each stage. Clear all five dials. Your best full-run time saves in this browser.
Controls
- Left / Right arrows (or A / D) spin the pier
- On a phone, hold the on-screen arrows
- R resets the current stage
- Space or Enter advances menus
Tips
- Short taps beat full-hold spins when the marble is near a gap
- Park the cup under the marble, then nudge. Do not chase with wild rotations
- Later stages add more rim bites
- Map the safe wood before you commit speed
About this game
Tideglass puts a sea-glass marble on a spinning pier dial. Arrow keys turn the whole maze while gravity keeps pulling down. Gaps in the rim open onto deep water; overspin and the marble drops off the edge.
Five stages add denser planks and more rim bites. Cup the marble on each dial to advance. Your best full-run time saves in the browser.
Free physics puzzle. No download, no signup.
Added October 4, 2026
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