The goal is written on the start, get 50 woods, 5 carcasses and 15 irons, to fix the boat and leave the island. But I understand your difficulty
i guess i just didn't see it, maybe for a future update after the jam it might be good to add a /50 to the text boxes to indicate your progress,
its was a VERY good submission though, i loved playing it for the time that i did.