Sellers here are simulated, so this screen measures whether the market is worth opening, not what a real price would be. The projection under each price is what that machine would dig against today's floor, priced at the settled reward rate rather than the launch subsidy, because a machine you buy now will spend most of its life after the subsidy ends. The payout is shared out by ore, so every machine anyone adds makes everyone's slice smaller.

The regime is what a plain tier-I machine gets back per dollar it burns. Permanent is where the economy settles; Zero vol is what a dead token pays, and it is here to ask whether the game survives without the reward.

Sessions, returns and the register are recorded in this browser and nowhere else. Wiping the save does not erase them. Changing browser or clearing it does. Download the file and use Restore to merge it back.

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You run a mine

1. You buy shifts, one at a time. A machine digs a shift only if you bought that shift for it. Buy the next one, or three ahead so the floor keeps working while the tab is shut. Buying nothing is allowed, the machine just sits out.
2. Every shift is a named block of the day. Four a day: 00-06, 06-12, 12-18, 18-24 UTC. The 00-06 block is the night shift, and two more catch a third of the night each. That never moves, so a Sleeper is played by buying the night blocks and letting the day ones idle.
3. The shift settles every two minutes. Everything dug on the floor goes into one pool, and the pool is split by how much ore each machine pulled. You are paid in tokenized stock, not cash.
4. That is how you earn. A plain tier-I machine gets about 1.30 dollars back for every dollar of fuel it burns right now. That is a baseline, not your payout: a better tier, a trait that suits the hour, a machine on its own seam all dig more ore for the same fuel, and ore is what the pool is split by. The bar at the bottom of the screen keeps your score against that line, and it goes under it too.
5. The rest of the floor is improving too. The other machines down here merge and tier up like yours do, and the pool is split by ore, so the bar you are measured against rises every shift. Keep merging and you stay ahead of it; stand still long enough and you end up paying to dig.
6. The rate is highest right now, on purpose. The first shifts pay a launch rate of 6.00× and it tapers to about 1.30× as the mine matures. The reward is there to start the economy, not to be its permanent shape, and the game tells you which regime you are in while you play.
7. Merge to climb. Pick two machines of the same tier and press Merge. The child inherits their traits, so which pair you press is the decision.
8. Traits pay off on a choice, never on a clock. Sleeper digs harder at night, Contrary on a quiet floor, Social on a busy one, Steady when its stock is calm. Greedy digs more and burns more; Thrifty the reverse. A machine on its matching seam digs 20% better. None of them is better than the others.

The machines keep digging while this tab is shut, so there is nothing to stay up for. Nothing here costs money and nothing is for sale: the rewards are play money.

Your mine is saved in this browser. Clearing it starts you over. The data panel in the rail has a Download and a Restore for exactly that.

Start digging

You pulled 0 ore

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The economy behind these numbers, where the pool comes from, what a tier is worth and what is still unbuilt, is written up on the front page.