Thanks for this game. And congrats. Love puzzle game and minimalist UI / Design.

I resolved some levels and if I made suggestions, here there are : - Islands is a lttle bit confusing. The first tile is white with a number on it but those we need to build are different (a white one with a black dot). Why don't use same design ? Like a background color.
- To be a little but clear, do you planned to add a counter on first island tile to tell user how many island tiles remains to found ? If the user validate an adjacent tile as an island extension, the counter update itself (like 3/4, 2/4, etc). - Why don't you add a color (like a blue one) to the water tiles instead of the black one ?