- Dig
- Everyone digs straight down, all together in one field. Tap DIG, Space or Enter as the needle crosses the green: a deep bite and little pressure. Yellow is ordinary; red is a short bite and a pressure spike. The zones move every dig.
- Cap or push
- Pressure climbs with every dig, faster near a pocket, where oil shows turn up. CAP & SELL (or C) cases the drilled depth and sells the crude. Reach the pocket for a gusher. Past the danger line any dig can blow out: the well's uncased depth and crude are lost and the rig rests a while. Cased depth is never lost.
- Upgrade
- Spend gold in four groups: Digging, Pressure, Oil & gold and Crew. Every upgrade trades something: read the + and − on each row. Shovel levels change the tool in your hands, from the Rusty spade to the Drill rig. Pick one blade, heavy or light; the relief valve switches on and off.
- Cards
- At depth milestones a card is offered: pick one of three. Cards are yours for good, and the common ones are plain bonuses while the rare ones come with a price. Your cards are on the Upgrades tab.
- Discover
- Break through 14 strata toward Earth's center. Each new discovery earns gold and one 2× boost lasting 60 seconds. Boosts are never sold.
- Return
- Your shaft is persistent. Crew works while you are away, up to its offline limit between visits.
- Invite
- “Dig beside me” captures an immutable snapshot. Its image keeps that moment; the invitation opens the game with everyone digging and highlights you.
Digger Derby is an independent game, not affiliated with any film, studio or person.
A local iframe is not proof of interactive play inside X. That requires an approved, authorized real-world X test.