Survey Block Command · Clarion–Clipperton Zone

Run the block.

You dispatch three rovers. Bank the block's metal target before the shift clock runs out — every cell must be surveyed before it is mined, and the plume must stay off flagged fauna.

  1. Tap or click a rover card at the bottom (or press 1 / 2 / 3) to select it.
  2. Tap or click any grid cell (or arrows + Enter) to send that rover there. It works the cell when it arrives.
  3. Pathfinder ◇ surveys fogged cells. Harvester ▣ mines surveyed cells into its buffer. Park Riser ▲ on a cell next to the Harvester to lift the buffer to the ship — a full buffer stalls.
  4. Bank the target and keep the stewardship grade above F to clear the block; pick one upgrade and go again. P pauses · M mutes.
◇ Pathfinder

Surveys a cell with sonar + sampling. Reveals nodule yield, fauna risk and a NOAA-style data point. Nothing can be mined until Pathfinder has characterised it.

▣ Harvester

Recovers nodules from a SURVEYED cell, filling an onboard buffer. When the buffer is full it STALLS until a Riser draws it down.

▲ Riser

Carries the lift line to the surface vessel. Park it adjacent to a working Harvester to bank the buffer. No Riser nearby and the Harvester stalls.

Score: metal lifted to the ship is your value. A working Harvester raises a plume that drifts downcurrent; every second it sits on flagged fauna adds to your stewardship offset, which sets the A+–F grade. Clear all 5 blocks to renew the licence.
5 blocks · ~3–4 min each · sound on recommended