Archipelagos was a 1989 Amiga game set on an expanse of tiny islands. The objective was to purify what remained of the land while being stalked by corrupted trees, which could move only when outside of the player's field of view. Remembered thanks to its tense gameplay and occult atmosphere, it's just been ported to iOS and BlackBerry(!) by original author Paul Carruthers. John Polson interviewed him for the Indie Games weblog; PC and Android cuts are on on the way.