Cogli
How to play
Every day there is one factory board and one thing to produce. Connect the deposits to the output, press Run, and watch it work.
Building
- Pick a component, then tap a square to place it. Select Belt and drag across open squares to paint a route.
- Tap a component you placed to turn it a quarter turn. On desktop, you can also use R or the rotate control.
- Choose Remove and tap a component to take it back.
- On a keyboard: move with the arrow keys, place or turn with Enter, and use the buttons below the board for the rest.
The components and board tiles
- Deposit
- Pushes out a resource every couple of ticks, always in the direction it faces. Some deposits hold a limited amount — when the number runs out, that is all you get.
- Belt
- Carries one resource, one square, in the direction it points. A belt takes resources in from any side except the one it points at, so corners need no special piece — just turn the belt.
- Bridge
- Carries two lanes across the same square without mixing them. Its main arrow shows the first lane; the crossing lane turns right from it.
- Splitter
- Resources enter the stem and leave alternately from the two sides. If one side is backed up, the splitter sends everything the other way until it clears.
- Sorter
- Sends the chosen resource to its matching side and everything else to the other side. It is available only on puzzles that give you one.
- Merger
- Combines up to three incoming lines into one. It takes turns between them, so no line is left waiting while another hogs the route.
- Maker
- Holds ingredients until it has a full recipe, works for a moment, then pushes the finished product out of the side it faces. It will not take anything in through that side.
- Output
- Accepts the product you were asked for and counts it. Anything else is turned away and will back up behind it.
- Obstacle
- A blocked square. You cannot place on it, so route around it or use another fixed tile to cross the board.
- Gravity well
- Pulls a resource in from the side opposite its arrow, holds it for one tick, then ejects it in the arrow direction. It is fixed to the puzzle.
- Wormhole pair
- Matching letters mark two fixed endpoints. A resource entering one reappears at the other and leaves in that endpoint's arrow direction.
- Magnet
- Accepts iron and copper from any side, then ejects them in its arrow direction. It is fixed to the puzzle and cannot be placed.
- Buffer
- Stores resources until it is full, then releases the batch one item per tick in its arrow direction. It is fixed to the puzzle.
Recipes
- 1 Iron → 1 Plate
- 2 Iron → 1 Cog
- 1 Copper → 1 Wire
- 1 Plate + 1 Wire → 1 Circuit
- 1 Plate + 1 Cog → 1 Engine
Stars
One star for making it work. Two for doing it inside the component budget. Three for matching the tightest build we know of. Solving it is the achievement — the other two stars are the reason to come back to a factory that already works.
A new one every day
Everyone in the world gets the same puzzle, and it changes at midnight UTC. You can play without an account; sign in if you want your history, streak and statistics synced across devices.