TEStroi   - Return to an Older World

TEStroi is a utility to help you port (convert) the landmass from any worldspace contained in any mod/master created for Oblivion: Elder Scrolls IV (2006) to Morrowind: Elder Scrolls III (2002). It will automatically make an exact replica of the landmass, vertex normals (for shading), vertex colours (for structure layouts and additional shading) and texture the land in the nearest equivalent Morrowind textures, Oblivion originals, or replacement Oblivion textures (such as Qarl's).

It will also convert all the NPCs (name, race, gender, class, vital stats, skills, AI data) and replace the most common non-magical weapons, clothing and armour back to TES3's nearest equivalents. These NPCs are placed back on the landscape in their original locations (including those in child worldspaces). Support is also given to converting Shivering Isles based mods. It can also convert all sounds, lights, activators and statics and place them back on the landscape; you will have to convert TES4 meshes back to TES3 yourself to make usefulness of the placed statics, naturally.

Options exist to move the entire landmass a specified number of TES3 cells in any direction to avoid conflicts with other mods, or to disable the conversion of land, NPCs or books. Additionally, where textures do not exist in the original landmass, TEStroi can apply any Morrowind/Bloodmoon or custom texture of your choice to the entire landmass, such as snow, grass, rock, lava etc. helping to reduce the effort required to repaste the entire region.


TEStroi will produce a masterless Morrowind compatible plugin called troi_out.esp which may be loaded in to either the Morrowind TES Construction Set (TESCS) or in to the game itself and visited.

Please note this is presently a Console application only, though it is simple enough to use.

You can see some Screenshots of how Oblivion's Tamriel looks when converted with TEStroi by clicking on this link.

How to use TEStroi:

Download and unzip the program from the link further below and copy it in to the same directory as the Morrowind master/plugin you want to import. Then open up a console window and type:

testroi Worldspace myfile.esp

where myfile.esp is the name of the Oblivion file you want to import and Worldspace is the name of the Worldspace containing the landscape you want imported.

Additional options to move the landscape and/or apply a fixed texture to it are specified in the Readme, distributed with the program below.

When TEStroi has finished, you should find a file called troi_out.esp in the same directory which you should move to your Morrowind Data directory (where all the usual Morrowind esm and esp files are stored). You may then load the landmass in to the TES Construction Set or in to the game directly. Presently no master is required for the landmass, so you can quickly load up troi_out.esp in the TESCS without needing to load Morrowind.esm.

Download TEStroi:

Downloads File
TEStroi (Version 0.57a3: Latest Version) - 05-August-2007 TEStroi-0.57a3.zip
TEStroi (Version 0.56: Previous Version) - 14-April-2007 TEStroi-0.56.zip


Paul Halliday (December 2006-August 2007)