====== Game ID ======


A game's **identity key** is a text string used to uniquely identify a game "mode" playable with the Doomsday Engine. Game modes are registered by the installed game plugins during startup.

A complete listing of all supported games and their associated IDs can be found in the [[Readme]].


A single game component, such as the Doom Plugin, may implement multiple game modes. Each mode emulates a specific version of the original game and typically has its own [[IWAD]] file. In some cases, several modes may utilize the same resources as other game modes.


===== Uses =====


  *  Used to identify the game in [[home_screen|Home]].
  *  Used to identify a network game on the [[multiplayer:master server]].
  *  Used during [[modding:external_resource_file|resource location]] to limit a subset of resources to a particular game mode.