Route optimization · sediment-plume planning

Plume Lines

Plot one continuous rover path from the dock that collects enough metal — without its sediment plume ever reaching a protected reef.

• Click a highlighted cell next to the glowing rover head to extend the path. Driving over an amber nodule harvests it.
• Each harvested nodule casts a plume downcurrent (the arrow). If it lands on red-hatched habitat the cell flashes — reroute. Click the head or undo last to step back; reset path starts over.
• Reach the metal target within the path limit, then commit pass. Zero strikes = silver; zero strikes at or under par length = gold. Clearing a level unlocks the next of six.