Idle · construction · beta
From a sand pit to a high-rise.
You start with a sand pit: dig up materials, haul them by truck, process them with machines, and build workshops, a bridge and finally a city.
You start with a sand pit, an excavator and two trucks. The excavator fills the pit’s own heap, a truck hauls the material to the yard, and machines process it: logs into planks and beams, clay into bricks, rock into crushed stone and cement, and those into concrete. You sell the surplus, and that pays for the next machine.
The picture shows the real production. A machine that has stopped makes no dust, the pipes turn grey when the reservoir runs dry, and the heaps grow with your stock. Machines heat up and ask for cooling water, and overheating wears them out, so they need repairs now and then. The card at the top right tells you what is holding up the construction: hauling, a material or research.
After three workshops comes the gorge. The bridge has four spans, goes up with a tower crane and needs rebar, which you buy at the trade depot. On the far side, houses, apartment blocks and three high-rises grow floor by floor, and finished buildings pay rent. Measured with automatic players, a full playthrough takes 6.5–10 hours; no human has finished it yet, and it will probably take longer.
Wood, bricks, crushed stone, cement and concrete: one machine’s product is another’s raw material, with by-products and additives along the way. The Chain tab shows on one screen which machine is working and what the others are waiting for.
You assign them to three jobs: from the mines to the yard, from the yard to the construction site, or to the trade depot to sell. After research, you can upgrade the load and speed of the whole fleet.
The card at the top right and the Build tab follow the chain backwards to find the machine or mine that cannot keep up. Upgrading anything else will not speed things up right now, and the game tells you so.
Two kinds of water are used: process water is a raw material, cooling water cools hot machines. Without cooling a machine overheats and stops, and every overheating wears it out. A cooling unit and a return basin make this cheaper.
For each material you set what is sold and how much is kept in reserve. Money comes from sales, finished buildings and rent, and rebar and glass have to be bought.
The four-span bridge is built in stages, with a tower crane lifting the materials into place. On the far side you build three houses, two apartment blocks and three high-rises (8, 12 and 16 floors), and the crane grows with the tower.
A fifteen-step tutorial in which you take every step yourself, tips along the way, and a searchable Help whose numbers come from the game’s data.
The yard keeps working for up to 2 hours when you are not playing, with the same rules: water, cooling and storage limits still apply.
Beta. The game can be played to the end, but so far the numbers have been measured with automatic players and no human has finished it, so prices and times may change. Bugs and ideas are welcome on Discord.
The game itself is in Hungarian only; the screenshots show the Hungarian interface.
Your save is stored in your browser, on this site. Clearing your browser data also clears the save, so it is worth using the game’s own save export.
Made for desktop, with mouse and keyboard. On a phone the interface does not fit on the screen.
The game needs a recent browser with WebGL; so far we have tried it in Chrome. The game is silent.
Quarry to Skyline: Idle Builder runs in your browser, with no install and no sign-up.
