Gathering
Documented basis: "Grab resources" leads the official how-to-play block.
When to pick it: Favor whatever tool, bag, or structure your session shows that raises how much you carry or gather per trip. Early game, carrying more is worth more than hitting harder.
Switch signal: Replace your gathering setup when a longer island trip wastes slots or forces a second run for the same haul.
Building and defending
Documented basis: "Build your base with structures and defenses" — the description calls base building half of the key to survival.
When to pick it: Spend on a structure only when it solves a problem you actually had: storage overflow, an exposed flank, a foe path. One verified placement beats five hopeful ones.
Switch signal: After your first foe fight or failed defense, rebuild toward what killed or nearly killed you.
Exploring
Documented basis: "Explore the sky and visit mysterious islands" — islands are the documented map structure.
When to pick it: Pack for the round trip: enough supplies to get out, survive there, and get back. One new island at a time, with the return route confirmed before you commit.
Switch signal: When local resources run thin or rescue progress stalls, the map — not the base — is the bottleneck.
Combat
Documented basis: "Find weapons and take on fearsome foes" — weapons are found through play, not given.
When to pick it: Engage only with a weapon in hand and a retreat path behind you. Test any new weapon on a weak foe before trusting it on a tough one.
Switch signal: Swap weapons when your current one cannot finish the foe type that guards your next objective.
Rescue progress
Documented basis: "Find and rescue 3 developers" — the mission stated in the official description.
When to pick it: Treat each rescue as a checkpoint: bank your base progress first, then push the search. A rescue means nothing if day 100 ends with an undefended base.
Switch signal: Any confirmed rescue changes your route planning — re-check what the next stretch of islands demands before departing.