Lost Island

The mod introduces a new world type built around resource management, planning and decision-making. A player begins alone on a small island surrounded by open water, where food and essential resources are scarce and limited. Each choice about how to spend those supplies decides whether the player survives, and a lost progression can be hard to recover from.

Floating pots drift across the ocean toward the island and carry rare, unexpected items. Missing a pot can mean missing the only chance to progress, which keeps the difficulty high. The island itself has rich biomes, and a safety net is present early on, while the wider ocean is shaped to feel like a hard limit until the player gains equipment.

Update 0.2 adds diving equipment and a coconut as a new natural resource. Remains of a sunken diver lie at the bottom of the ocean far from the island, and searching them yields pages of a lost journal and the diving gear needed for underwater exploration. Lost Island is not open source and is released under All rights reserved. Every player and the server need a copy of the mod. Files cover 1.21.1 only.