Coral Island

Farming sim that adds underwater restoration to the usual crop-and-livestock routine. You'll plant fields, tend animals, and befriend townspeople, but also dive to rehabilitate damaged coral reefs through cleanup and replanting. The island hosts a sizable cast of NPCs, each with their own schedules and backstories you uncover through repeated conversation. Environmental work ties directly into progression—healthier reefs unlock new areas and resources. Expect the standard seasonal calendar, crafting systems, and relationship meters, plus fishing and mining. The reef angle means your daily loop splits between surface farming and ocean tasks. If you want farming mechanics with an ecological hook and don't mind splitting attention between land and sea, this delivers both.