NifTools is an open source project creating tools such as editors, C++/Python libraries, and plugins for 3ds Max, Blender, and Maya for files used by the NetImmerse/Gamebryo™ engine and Bethesda Game Studio's Creation Engine. These tools enable users to create and edit 3D models and animations used in several popular PC games.

Development has most notably benefited Skyrim SE, Fallout 4, Skyrim, Fallout: New Vegas, Fallout 3, Oblivion, and Morrowind. Other games include Civilization IV, Freedom Force, Freedom Force vs the 3rd Reich, Star Trek: Bridge Commander, Dark Age of Camelot, Zoo Tycoon 2, Empire Earth II, Empire Earth III, Sid Meier's Railroads, Megami Tensei: Imagine, Pro Cycling Manager, Loki, Prison Tycoon, Wildlife Park 2, Red Ocean, The Guild 2, Axis and Allies, and Bully SE.


  • amorilia
  • jonwd7
  • neomonkeus
  • psi29a
  • ttl269
  • meliodasx
  • Dexesttp

A git repository for nifskope.

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The Blender NIF Plugin is a Blender addon to enable import and export of the .Nif File Format.

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The nif plugin for 3ds max.

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PyFFI is a Python library for processing block structured files.

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Git clone of niflib.

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A repository for the nif.xml file, which contains the nif file format description.

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