From the game's introduction:
Archipelago is a story/role-playing game where each player controls a major character. Player take turns telling a part of their character's story, leading them towards their selected point of destiny, while other players interact with and influence that story.
Who is this game for?
If you like the story-telling part of games, and enjoy the creative challenge and inspiration that comes from working with others, this game is for you. If you like tactical mechanics, resource management, or player-vs-player competition, there are other games that might work better for you.