Chrono Cross is a PlayStation RPG created by Squaresoft as a sequel to Chrono Trigger. Chrono Trigger had a "sequel" called Radical Dreamers for the SNES, but it was text-based only. Radical dreamers was completely redone for the Playstation as Chrono Cross, and was released in the U.S in the year 2000. Therefore, Chrono Cross is a revision of Radical Dreamers. The music was primarily composed by Yasunori Mitsuda, with Nobuo Uematsu.

The story of Chrono Cross revolves around the character Serge, who plays a key role in the world of Chrono Cross. That is, until he is killed in an accident. The resulting shift in the world's history creates two distinct parallel dimensions. In one dimension, he survives and lives for 10 years before the game begins. In the alternate dimension, he dies because of an attack by a panther.

Chrono Cross's story also revolves around resolving the paradox of Chrono Trigger. In Chrono Trigger]], the main characters discover a disaster when they teleport to the future, and then later teleport back to the past to prevent it. Because preventing the disaster prevents them from ever learning about it, it causes several different timelines to appear. In total, Chrono Cross revolves around 7 timelines. This fact, combined with a rather confusing translation, leads to many fans of the original Chrono Trigger being quite confused with Chrono Cross's story.

Chrono Cross Timeline has a listing of the Chrono Trigger / Chrono Cross timelines. It also contains spoilers and is not 100% complete. Do not read if you have not beaten the game.