Everyone can now play Skullduggery Island on Poptropica. The creators posted on the official blog letting everyone know that it is open and available for the public. Up until today, you had to be a paid member to play it, or have been one of the lucky people that won a contest for early access. Don’t forget that I have a full video walkthrough here:
Remember that Skullduggery Island is a lot different than previous Poptropica quests. It starts out with a small simple mission where you need to help the villagers living in Fort Ridley. But once you get your first ship and set sail, the quest opens up and there are lots of different ways you can proceed. The biggest goal is to earn enough doubloons to hire a crew and purchase the Phoenix Warbird ship so that you can defeat Captain Crawfish, but there are many different ways to do that. Check out the walkthrough or the Skullduggery Trading Guide for some more help and suggestions. The best way to earn doubloons is through trading cargo at the different ports, but it’s entirely possible (although a LOT slower) to earn coins by sinking pirate ships and collecting salvage.
Good luck with Skullduggery Island!