.IGB File Extension
Intrinsic Graphics Binary File
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What is an IGB file?
An IGB file is a character model or animation used in an Intrinsic Alchemy Engine video game. It contains a character that appears in a game or an animation to be applied to that character. IGB files were used primarily in games published by Intrinsic Graphics, Vicarious Visions, and Activision.
In 2003, game developer Vicarious Visions acquired rival developer Intrinsic Graphics. As part of that acquisition, Vicarious Visions gained ownership of Intrinsic's 3D game development platform, Intrinsic Alchemy Engine.
Vicarious Visions (which was itself acquired by Activision in 2005) used the Intrinsic Alchemy Engine to produce a number of popular 3D games, including the X-Men Legends and Marvel: Ultimate Alliance series and Pirates of the Burning Sea. These games' character models and associated animations were saved as IGB files. Vicarious Visions also licensed the Intrinsic Alchemy platform to other game developers, who used it to produce models and animations for their own games.
Common IGB Filenames
###_charactername.igb - An IGB character model.
###01.igb - An animation to be applied to an IGB character model. The three-digit number at the start of this filename corresponds to the three-digit number at the start of the character model's filename.
How do I open an IGB file?
Because IGB files use a proprietary format unique to the Intrinsic Alchemy Engine, and the Intrinsic Alchemy Engine is no longer available, IGB files cannot be opened.