Ahsana

This mod allows you to play as Visas in KOTOR 1.
This "incognito" Revan is a master of obscuring herself behind masks and veils to a degree of sophistication unmatched by other Revans, for she utilizes the disguise within the disguise. As Lord Revan, she wears a veil beneath her mask to double-obscure her true face, making her nigh unrecognizable. People who knew her before she forgot she was Darth Revan are able to spot her immediately, but whether this is because of or in spite of the veil, is anyone's guess. Whether this Revan's injuries after Malak's betrayal led to blindness, or whether she simply instinctively knows she must cover her eyes at all times to quicken the recovery of her Force abilities, is also anyone's guess.  Or perhaps the veil provides Revan a subconscious means of expressing lost identity and blindness to the past.
 
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HOW TO INSTALL :
 
After downloading the zip and extracting...
1.  Open the folder with the option you prefer:
UndK2 -----This gives Visas the standard underclothing from K2 (default), as well as the standard dark side black bodysuit underclothing when she falls to the dark side. It also includes her dark side heads and portraits from K2. (There are a few options to look at after installing if you want to furthur customize--for instance if you don't want the black bodysuit when she turns to the dark side. There are also further instructions in that folder.) UndTwiAsnLrg ----- This gives the large body model for the Twilek Assassin from K2 for Visas's underclothes, consistent throughout the game (it doesn't change when she falls to the dark side). It doesn't include dark side heads or portraits (that stays the same throughout the game too). There are screencaps in the UndTwiAsnLrg folder that show what it looks like. UndTwiAsnMed ----- This gives the medium body model for the Twilek Assassin from K2 for Visas's underclothes, consistent throughout the game (it doesn't change when she falls to the dark side). It doesn't include dark side heads or portraits (that stays the same throughout the game too). There are screencaps in the UndTwiAsnLrg folder that show what it looks like. (Note: All options include Visas's normal robes/attire.)

2.  Double-click on TSLPatcher.exe within that folder (e.g. for the UndTwiAsnMed option, double-click on TSLPatcher.exe within the UndTwiAsnMed folder) to install. Read and follow the instructions given by the installer (which can be found in the info.rtf file that is within any of the 'tslpatchdata' folders).
Instructions summary:
Select your Star Wars Knights of the Old Republic folder housing your game when TSLPatcher asks you to choose the folder to install into.
TSL Patcher will then instantly put all texture (tga) and model (mdl/mdx) files into your Override folder and insert a new row into each of your appearance.2da, heads.2da and  portraits.2da files for Visas. If one or more of these 2da files isn’t in your Override folder already, TSLPatcher will insert the absent file(s) and add the new row for Visas in.

3.  Play as Visas.

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BACK UP FILES
If any of the tga or mdl/mdx files being added into your Override happen to have the same name as files already there, the installer will overwrite them. However, they are not lost, as the installer will also create a backup folder inside the folder you ran it (TSLPatcher.exe) from, in which it will store the original copy of the file for you to retrieve.
If you already had appearance.2da, heads.2da and/or portraits.2da in your Override folder, keep the backed up one(s) in case you wish to uninstall Visas as a PC for K1 later. Instructions for how to do that are included when you download this mod.
 
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Possible "bug":
- This may change the appearance of what people are wearing when you flip through the character menu when starting a new game. It doesn't affect game play, it simply looks strange in the menu.

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E> TY to the developers of KOTOR Tool, TSLPatcher, MDLedit, and all the other tools that make modding KOTOR possible, as well as to DeadlyStream and all the people who answer questions.

Files only need to be dropped in override folder.
 
(files edited from CD-ROM of K1)

(for K1)
Included in mod:
New fur for all five female wookies + one additional (n_wookiefred.tga) that can be swapped with any of the others New fur for three male wookies, although one of the furs is very similar to the original Grrrwahrr & Freyyr no longer have same appearance; Grrrwahrr is now the abominable snowman wookie while Freyyr looks similar to before Red male wookie (n_wookiem02.tga) = Gorwooken; the guard on the Great Walkway guarding way to Shadowlands; Rulan Prolik Swapped one of the male wookies in Rwookrrorro with a female wookie so that all five female wookies are present in the village Screencaps Files included to drop in override folder:
N_WookieF01.tga n_wookief02.tga n_wookief03.tga n_wookief04.tga N_WookieF05.tga n_wookiem02.tga n_wookiem03.tga n_wookiem04.tga kas23_freyyr_01.utc kas25_freyyr_01.utc kas23_wookgem_04.utc (The tga files are the reskins; the Freyyr utc files switch Freyyr to a wookie that isn't identical to Grrrwahrr; the wookgem utc file switches a male wookie in Rwookrrorro with a female one.)
 
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Other mods you might notice in screencaps that I didn't create that are not part of this, but I thought I would advertise since they are still observable in the screencaps:
Upper Shadowlands grass is from this mod (file: LKA_Grass.tga) by MadDerp but was recolored to be more silvery. Some of the wood, trim, lights, doors and bark is from this mod by Curtis1973.  
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I don't know if this is K1R compatible or not...