Installing mods on the Portable (Non-Steam) version of Tomb Raider (2013) is slightly different than the Steam version because you don't have access to the Steam Workshop. You must manually install mods, which typically come in .zip or .rar archives from sites like Nexus Mods.
Easy Backups: You can simply copy the entire game folder before applying mods to ensure you can revert if the game becomes unstable. Important Considerations tomb raider 2013 how to install mods portable
Do not use a desktop shortcut (it may point to a registry key that doesn't exist). Instead: Installing mods on the Portable (Non-Steam) version of
Inside, you must see TombRaider.exe. If you see a Binaries folder, go inside Win64 or Win32 to find the executable. Download and install Tomb Raider Mod Manager
TexMod is a popular portable utility used for swapping textures (like outfits or hair colors) without permanently altering game files.