Horizons of Spirit Island is a Stand-alone expansion which features the core mechanisms of Spirit Island, but features a new double-sided game board with a streamlined set-up, punchboard components, and five new Spirits designed to be ideal for those playing a Spirit Island game for the first time. These new Spirits are compatible with all existing Spirit Island components, but to play with expansions like Jagged Earth, you would need a copy of Spirit Island itself.