Spin the belts, send the cubes on a collision course, and merge them all the way to the goal number.
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How to play
You never touch the cubes. The board is a grid of conveyor belts and your only move is to rotate a belt cell, turning the direction it carries things — north, then east, then south, then west. Every tick, each cube steps one cell along whatever belt it is standing on, and when two cubes of equal value arrive together they merge into one of double the value.
Toggling a belt rotates it one quarter-turn clockwise. You cannot set a direction directly.
Equal cubes merge and score. Unequal cubes block each other, and the one that tried to move stays where it was.
Reach the target value to win.
Your toggles are limited. Running out without reaching the target loses the level.
Everything is deterministic — the same board and the same toggles always produce the same run.
Controls
Desktop: click a cell to rotate its belt, then use Step or Auto to advance
Phone & tablet: full touch support, tap a cell to rotate
Game modes
Daily seeded layout or Practice
Board sizes from 4x4 up to 6x6
Tips & strategy
Build loops. A cube circling a closed path costs you nothing per tick and is waiting where you need it, while a cube heading for a wall is a toggle you will have to spend.
Steer the smaller cube. Since unequal values block, it is usually cheaper to route a 2 into a waiting 2 than to reorganise the larger half of the board.
Count the quarter-turns. A belt three rotations from where you want it costs three toggles, so the cheapest solution is often the one facing nearly the right way already.
Set up the merge before the cubes arrive. Belts act every tick whether you are ready or not, and fixing a collision after it blocks costs more than preventing it.
Blocking is a tool. Parking an unequal cube in a corridor holds another one in place until you are ready for it.
Origins
The merge rule is 2048's — equal values arriving together double.
The original control scheme is that you never touch the cubes. The board is a grid of conveyor belts and your only move is to rotate one belt cell through north, east, south and west.
That turns a tile puzzle into a routing one. You are not moving pieces but building the machine that moves them, and because every cube on a belt steps each tick, a rotation made for one merge also redirects everything else standing on that line.
About Conveyor Cubes
Conveyor Cubes is an original number-merging puzzle driven by routable conveyor belts. Free to play in your browser on PlayPendium.
A free, original browser game on PlayPendium. No download, no install.