Existing San Andreas or older GTA United save games are not compatible and will cause crashes; a fresh start is required.
Includes fixed rooftops, new usable garages, shops, and hundreds of accessible interiors that weren't in the original standalone games.
As of July 2021, the original developers officially took down the mod from their main site due to potential DMCA legal concerns, though it remains available on various third-party community sites like GTAModMafia . Key Features Existing San Andreas or older GTA United save
The 1.2 release focused on fixing the crashes prevalent in earlier Beta versions, making it a "new experience" rather than just a patch. Installation Guidelines
Replaces the standard San Andreas state (Los Santos, San Fierro, Las Venturas) with full versions of Liberty City and Vice City. Key Features The 1
The blog post at gtamodmafia.com provides a "full mod" download package. It highlights that the modification is non-commercial and developed by fans for fans, independent of Rockstar Games. GTA: United - GTAMods Wiki
According to the Official Support Page and community guides: It highlights that the modification is non-commercial and
Version 1.2 was a major milestone released in 2012 after over four years of development. It introduced significant stability improvements, overhauled scripts, and a "limit adjustment system" to handle the massive map data.