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Fallout and Fallout 2 file formats

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Fallout and Fallout 2 both incorporate a few native file formats to store data in different ways.

Animation / ArtworkEdit

  • FRM file - Frame Graphics file, used for the game-world artwork
  • RIX file - ColoRIX image file, used as splash screen while loading the game

Audio / VideoEdit


  • INT file - Script used by various characters and objects found in the game world


  • BIO file - Pre-made character biographies
  • GAM file - Holds all of the global variables (GVAR) and global map variables (MVAR) in the game
  • MSG file - Dialogue / message file used for characters, locations, and all other text found in-game
  • SVE file - Holds movie subtitle data

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