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ioquake3 Wiki

Welcome to the ioquake3 wiki - the page to collect and organize all tidbits about this Quake III Arena compatible game engine.

This wiki is primary oriented for users, developers and server administrators.

Primary sections

Primary external links

Code Overview

ioquake3 is divided into two general parts, the client part and the server part, with a networking system that connects the two. The client mainly takes care of user interface. That is, it displays the 3D rendering of the game world and also collects keyboard, mouse, and joystick input events. The server is responsible for taking care of everything else: moving the user's position and view based on keyboard/mouse/joystick inputs, detecting collisions, processing bot AI, determining hits and frags, etc.


Program Flow

During startup of a standard game, the top-level flow of control goes like this:

  • Depending on whether you're using a unix environment or Windows, program control will start at either main() or WinMain().
  • Windows will first create a console window using Sys_CreateConsole().
  • Misc. initialization of CD path, install path, and command line buffer.
  • Call Com_Init(), which processes the command line, initializes some internal memory buffers, loads cvars, and initializes the server, the client, and the network channel.
  • Call Com_Frame() in an infinite loop. Each call to Com_Frame() results in one frame of gameplay.


Test Builds

  • These are the latest test builds of ioquake3 for Windows, Linux, and OS X.


Mediawiki misc information


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