A good adventure game has a balanced story. It gives you enough to keep you interested but not so much that you have no reason to continue playing. The puzzles are fair and at least some of them should be challenging. There will be both inventory based challenges and riddles that simply challenge the mind. In a perfect world there would be NPC interaction as well, but sometimes the story might prohibit that. And even though you might have to do a lot of traipsing back and forth, you won’t mind because you’re too into the game. Vanished: The Island is a good adventure game.