Marble Lines

Marble Lines is a color-matching puzzle where the board slowly fills up and patience matters more than speed. Three new marbles drop onto the grid after every move, so the pressure to think ahead is constant. Line up five or more same-colored marbles — horizontally, vertically, or diagonally — and they vanish, clearing precious space.

What makes it genuinely tricky is that you can only move one marble per turn, and only if a clear path exists between its starting point and destination. Planning two or three moves ahead becomes necessary once the grid starts getting crowded. A well-placed marble can trigger multiple clearings at once, which is where most of the satisfaction comes from.

The game gets harder simply because the board fills faster than it empties if you're not careful. There's no timer, but the accumulating marbles create their own quiet urgency. It suits short play sessions well, though the puzzle logic tends to pull players into longer ones without much warning.