The first idle GameFi experiment.

The perfect cross between DeFi and GameFi. Hold $COAL and your miners dig 24/7 while you're away. The deeper you dig, the better your odds of striking diamonds and winning the pot. Then the mine refills its own prize and we go again.

Enter the Mine Walk into town
SEASON 03
now digging
$0
prize pot · usdc
0 ft
deepest dig
3d 18h
to forced draw
walk into town

An idle coal mine. On-chain. Doing real work every block, even while you sleep.

01You hold $COAL
→02Your miners dig
→03Dig deeper, better odds to strike
Above ground · the town

Welcome to Coal Town.

Every protocol piece is a building on this street. Stop by each one, then take the pithead down.

Briefing Shack
How the dig works
visit ▸
The Smithy
Tools & the flywheel
visit ▸
The Market
Tokenomics & wages
visit ▸
The Pithead
Go underground
enter ▸

Done looking around?
Going under.

Everything below this line happens underground. Four levels down to the diamond seam, and each one explains a piece of the game.

0 ft dug by hand
▼
LV.1Base Camp · −1,200 ft
Two ways to play

Two levers. One is yours.
One is rented.

They work differently on purpose. If both just added speed, there'd be no decision, only "spend more." The split is what makes it a game.

From your bag
Miners
the landlord position
Your miner count comes straight from your $COAL balance. They give you base dig speed: free, permanent, and entirely yours. More bag, more bodies swinging at the rock.
Freejust hold
Permanentnever burns
Base speedthe foundation
Bought with USDC
Tools
the day-laborer position
Pickaxes, drills, dynamite. Bought with USDC, they multiply your base speed, with diminishing returns as you stack them. They shatter when the season ends, and that spend funds the next prize.
USDCreal cost
Burnsevery season
Multiplier×your base

A small bag with the right tools can out-dig a whale.
That tension is the whole game.

LV.2Coal Seam · −3,400 ft
The flywheel

The pot refills itself.

Most GameFi plays pay out once and die. This one keeps going: next season's prize is funded by this season's tool spend. That's the DeFi half doing the work.

1
Buy tools
Diggers spend USDC on pickaxes and drills to dig faster.
2
USDC seeds the pot
That spend is held and rolled straight into next season's prize.
3
Bigger pot pulls diggers
A fatter prize gives everyone a reason to come back and dig.
4
More diggers, more tools
More players means more tool spend, and the loop closes.

A built-in reason to keep playing past season one. The game refills its own prize instead of paying out once and dying.

LV.3Deep Coal · −5,800 ft
Tokenomics

Where the money moves.

Every $COAL swap carries a 2% tax. Half pays the people doing the holding. The rest keeps the lights on.

2% tax on every swap
Split down the middle, paid on the way in and the way out.
1%Miner wages → holders
1%Team & protocol
WagesHolders earn a passive cut of every trade, claimed, not pushed. Standard dividend accounting, no gas-eating payout loop.
PotUSDC from tool sales becomes the next season's prize. The loop, closed.
DrawWinner chosen by Chainlink VRF, weighted by depth, never by block data.
$COAL ERC-20
The only thing that trades, and the source of your dig speed. Carries the 2% tax.
Miners ERC-1155
A cosmetic mirror of your bag: one fungible id, cheap, optional to claim. The game reads your balance, not these.
Tools ERC-1155
Typed, separable, the real collectible. Bought with USDC, each with its own stats and art. They stand alone.
Dig=hold
Surface=sell
Strike=win
Wage day=settlement
Back to the mines=new season
LV.4Diamond Seam · −8,000 ft
Seasons

Seasons run 2 to 7 days.

Every resolution is its own event: a winner reveal, a fresh pot, a new set of tools. The dig is public.

Presale
Seeds season one and the first holders.
Digging
Miners swing, depth ticks, tools multiply.
Resolving
VRF draws a winner, weighted by depth.
Strike
Winner takes the pot. The seam cracks open.
Back to the mines
Tools burn, the pot reseeds, a fresh shaft opens.
The deeper you dig, the better your odds. The winner is drawn by VRF, weighted by depth. Tickets scale as depth^k with k below one, so digging deeper always lifts your chances while squeezing whales and keeping mid-size players a real shot. Nobody can trigger the draw early to kill tool demand.

You surfaced three feet short.

Losing is the most shareable thing that happens here. We render exactly how close your shaft got to the seam, and hand you the screenshot. Every near-miss is marketing.

4,997 ft
Surfaced 3 ft short of the diamond seam.

The mine is open.

Grab a bag, equip a pickaxe, and start digging. The deeper you dig, the better your odds of striking the pot.

Enter the Mine Join the presale