In a multiplayer session, game state information is communicated between multiple machines over an internet connection rather than residing solely on a single computer.

尽早规划多人

因为多人游戏当做单击游戏一样可以正常运作，反之则不一定，因此如果程序将来有多人需求的话，应尽早在最开始就朝着多人的方向来规划。

Client-Server模型

In a single-player or local multiplayer game, your game is run locally on a standalone game. Players connect input to a single computer and control everything on it directly, and everything in the game, including the Actors, the world, and the user interface for each player, exists on that local machine.

Single-player and local multiplayer take place on only one machine.

In network multiplayer, the game takes place between a server (1) and several clients (2) that are connected to it. The server processes gameplay, and the clients show the game to users.