Direct answer
New islands are part of the official progression. Finish the important quest, prepare equipment and supplies, and understand the next objective before leaving a known area.
Departure checklist
- Sell or secure the current catch.
- Purchase only clearly useful equipment.
- Confirm the whole crew is present and ready.
- Review unresolved quests or collectible targets.
- Keep a recovery plan if the destination is more dangerous.
Map policy
Island names and unlock requirements will be added only after direct verification. This avoids spoiling players with guessed routes and prevents search pages from becoming stale after updates.
Fact check: August 24, 2026 · Primary factual source: official Steam app data (App 4001890).