In the
Warhammer games, the
Chaos Powers are
spiritual manifestations of the darker aspects of human
psychology.
There are two eternal rivalries among the Chaos Powers: Nurgle vs. Tzeentch, and Khorne vs. Slaanesh. Nurgle and Tzeentch represent opposing paths of corruption along the metaphysical axis (
issue) of
action, or
interrelation. Khorne and Slaanesh represent divergent paths of corruption along the
metaphysical axis of
sensation, or
experience.
One of the
fun things about the Chaos Powers is they introduce
cartoonish
chaos mutations and
chaos artifacts into the game.