Switch the tier β the archipelago relabels itself. Each island is its own island and part of the bigger archipelago above it. π‘ Hover or tap any island for what it is, why it looks like that, and its goal.
The big driver is exchanges per location and their growth: a site turns lush as it keeps exchanging, and the group levels up as exchanges rise β at Level 10 it moves to the next Stage. Scored on coverage + growth + breadth, so big or small, everyone climbs the same 1β10 (never raw tonnage alone). Try an action β watch an island green.