Arcus I・II・III is a full 16-bit remake of the first three PC titles in the Arcus series, Arcus, Arcus II: Silent Symphony, and Arcus III. Each game is presented as a "chapter" of the overarching narrative. The most significant changes is that the second game now uses the first-person dungeon format from the first and third games, and there are also new fully animated and voiced visual scenes that depict important story events.