SANJIESAN LORE / Island worldbuilding
Give an invented island chain a chosen geologic story
A row of islands can be more than repeated silhouettes. USGS describes the Hawaiian chain in relation to plate movement over a hotspot and an age progression. That is one real example, not a formula for every archipelago. Choose whether an original chain uses a comparable premise before borrowing its visual pattern.
Choose a cause before a decorative alignment
Draw three islands with distinct outlines and mark an intended older-to-younger direction only if it belongs to your chosen model. Do not copy Hawaii’s direction or dates by habit. If the islands have another origin, research that origin separately rather than keeping the hotspot explanation because it sounds scientific. An explicitly extraordinary origin can also work, provided its consequences belong to the project’s established rules.
Vary one landscape feature deliberately
Choose one feature to investigate across the three islands: the prominence of a volcanic centre, the shape of valleys or the relationship between coastal plains and high ground. Make small studies and identify which differences are supported by research and which remain artistic choices. Do not automatically make the older island culturally older or less advanced. Geological age and the history of inhabitants are separate questions with separate causes.
Connect one settlement to its own island
Pick one harbour settlement and show how it uses the local landform in the story: where people gather, where a road turns or which distant feature acts as a landmark. Avoid designing three identical towns simply because the islands share an origin. Compare the regional map with one street-level view. The geological premise should organise meaningful differences, while the actual inhabited place still needs its own history and everyday activity.