If you spent hours rolling a 2×1 block toward a square hole in Bloxorz, or guiding a cuboid through mystical ruins in Cuboid — you'll feel at home here. Syncline shares the spirit of those games: minimalist geometry, deliberate moves, and the quiet satisfaction of logic clicking into place.

The twist: your piece is a whole line of cubes. Stand it on end to climb, lay it down to reach across. It never rolls off into empty space, so you can't lose a cube by accident — but roll it into a wall and it splits: the cubes that can't pass break off and stay behind. Line up with them again to reconnect them, or leave them where you'll need them later. A cube waiting on lower ground is also your way back down.

The camera is part of the puzzle. Your controls follow it, so turning it changes which way the same key rolls you — and when the line splits, which cubes you keep depends on which way you're facing.

Hazards complicate everything. Destructors take any cube that touches them. Duplicators turn it into another duplicator. Fragile ground breaks once you move off it, and triggers switch blocks on and off. Nothing is random — every threat sits in plain sight.

Any move can be taken back. Hold undo and the board rewinds one move at a time, and a restart is instant and can be undone as well, so you can test an idea without starting over.