Spheres of Chaos happened in 2000.
Spheres of Chaos was created in 2000.
CHAOS. CHAOS, i tell you. CHAOS!
Chaos Legion happened in 2003.
Chaos League happened in 2004.
Sonic Chaos happened in 1993.
Swords of Chaos happened in 1990.
Chaos World happened in 1991.
Chaos Break happened in 2000.
The Chaos Engine happened in 1993.
Mist of Chaos happened in 2007.
Chaos Field happened in 2004.
Chaos Wars happened in 2006.