In order to keep the player longer and attract new ones, the islands should be more interesting.
I don’t know exactly what the procedural creation of the game world is about. But I know that nothing can replace human imagination and creativity.
A set of seeds should contain islands that were designed by humans. Only then will each island be different, mysterious and stimulating the player’s curiosity.
I cannot understand why the potential of the game is not being used? Because anyone who has tried to design their own island can see that the possibilities are huge. In the same space to be designed, islands can be larger, with more cliffs, rocks and vegetation. They can be less schematic, more diverse and dangerous. All this while maintaining the reefs.
The game can contain up to several hundred island designs that can be randomly selected during seed creation. Procedurally, you can add chests and their contents as well as the contents of containers. Procedurally, you can enrich the islands with additional gameplay elements (additional challenges, puzzles, secrets).
This change takes a lot of work. But it is probably not much, compared to the one already done. And the effect …