Oredrift

Every tap takes a chip out of the rock.

Every metre down, the stone gets harder and the ore gets richer — topsoil, clay, stone, slate, and the cold blue deep where the good seams are.

You will not be tapping for long. Coins hire a crew, and the crew digs without you: while the tab is open, while it is closed, while you are asleep. Come back and they have been working the whole time.

When the shaft gets slow, collapse it. You lose the coins, the crew and every metre you dug — and you keep the cores, which make the next run faster than the last one could ever have been. That is the whole game: dig, grow, let it go, dig faster.

• Tap to dig, or let the crew do it for you
• Two miners on the ledge, in better kit and faster hands with every hire
• Thirteen rock strata, each with its own palette and its own economy
• Offline earnings — the shaft never stops

Plays in the browser. Nothing to install, nothing to sign up for.