CLEO for GTA 3 and GTA Vice City. The huge success of CLEO for San Andreas inspired Alien to port the library to GTA 3 and Vice City. Some features, such as custom CLEO saves storing variables and scripts state were cut off. After Alien's retirement, the development slowed down until Silent issued a patch to the latest available version. Example of a modded Grand Theft Auto: San Andreas As you can see on this picture, the person added: ENB mod → More shadows, more detailled textures and you have a better gameplay.
Installation
CLEO 4 is distributed in an archive. To install the library unpack the archive into the game directory.

CLEO 4 supports different versions of GTA San Andreas: 1.0, 1.01, 3.0 (steam), but scripts and plugins are not guaranteed to be compatible.
CLEO requires an 'ASI Loader' installed to run which is provided with the release. The ASI Loader requires overwriting one original game file: vorbisFile.dll
- be sure to make a backup of this file. No additional files are replaced, however the following files and folders are added:
- cleo (CLEO script directory)
- cleoFileSystemOperations.cleo (file system plugin)
- cleoIniFiles.cleo (ini config plugin)
- cleoIntOperations.cleo (int operations plugin)
- cleocleo_save (CLEO save directory)
- cleo.asi (core library)
- bass.dll (audio engine library)
- vorbisHooked.dll (Silent's ASI Loader)
All plugins are optional, however they may be required by various CLEO scripts.
Gta San Andreas Mod Installer For Mac Installer
CLEO 4 for San Andreas needs the BASS.dll v2.4 to be installed. This dll file can be downloaded from the official site of Un4seen Developments Ltd.