The official site for Anarchy Reigns describes the following features:
Multiplayer mayhem: Creativity and violence are rewarded in this online brawler, as you battle to become the ultimate survivor. With over 8 different characters to choose from, each with their own unique style, weapon, and signature kill move, this is the ultimate survival of the fittest.
Various modes: Anarchy Reigns provides a variety of multiplayer modes to cater for different tastes. The list of modes includes Battle Royale, Death Match, Survival Mode and many more.
Single-player, two characters: Play either as Jack Cayman or Leo in the ultimate ‘survival of the fittest’. In true Platinum Games form, each character brings a unique style and feel to the single-player Campaign mode, providing over 10 hours of gameplay.
Action trigger events: A.T.E. (Action Trigger Events) system triggers real-time events such as a black hole, a plane crash, blitz bombing, etc, to provide a constantly changing gameplay environment. No two matches will ever be the same.