The ultimate guide on improving the graphics for Arkham City. - Work in progress mod
Some optional textures to alter the game. Includes blood effects texture, which causes blood impacts upon strikes. Also includes different sky textures and an updated water texture.
Use winrar or alternative extracting program to extract the file. Extract the file in a convenient folder where you may keep all other texture (tpf) downloads.
Texture requires 'Texmod' to work. Download Texmod, run the application and select package mode. Select BatmanAC.exe as target application. Go to the small folder icon and search for the any tpf files you want to use. Run the game through texmod.