the characteristics I think typify the asynchronous multiplay.

Characteristic 1

Asynchronous play supports multiple players playing in sequence, not in tandem

 

in asynchronous play, those players never play the game at the same time. Instead, players play in sequence, one after the other. In some asynchronous games, one player immediately follows another, in others a duration of time elapses between players. Play might take place on the same computer, console, or device, or it might take place on separate devices.

 

Characteristic 2

Asynchronous play requires some kind of persistent state which all players affect, and which in turn affects all players

 

In games like WarCraft and Unreal,player damage to buildings might persist even after that player leaves the arena.

 

Characteristic 3

Breaks between players are the organizing principle of asynchronous play

 

Just as simultaneous, collaborative play is the hallmark of synchronous multiplayer games like MMORPG’s, sequential, disrupted play is the distinguishing trait of asynchronous multiplayer games. As such, asynchronous gameplay relies on meaningful use of these disruptions as wellsprings for game experiences. This means that good asynchronous multiplayer games design these fissures as centerpieces, rather than detours.

 

Characteristic 4

Asynchronous play need not be the defining characteristic of a game

 

In many games that feature asynchronous multiplay, mutiplay itself is optional, an addendum to an entirely adequate and complete single-player experience.