Gravel Bank

Gravel Bank drops you on a muddy gold-bearing riverbar with one wooden sluice box and a shovel. Scoop paydirt into the trough, then ride the water valve: too little flow and gravel chokes the riffles into a jam, too much and your gold flakes wash straight out of the box. Every batch of paydirt is graded rich or poor, so read the pile before you dig. Riffle bars trap passing gold in real time while sudden storm surges send the river roaring, forcing you to cut the valve fast or lose the haul. Score comes from gold grams captured plus sluice flow health. Earn coins every run and spend them in the Supply Shop on six working upgrades: a mosswood sluice skin, tighter riffle grid, steady-flow valve, gold magnet mat, reinforced bed liner, and a wide scoop shovel. Simple to learn, tense to master. How heavy is your next haul?