Grand Theft Auto: Underground remains one of the most ambitious total conversion mods in gaming history. By combining the maps of GTA San Andreas , GTA III , GTA Vice City , Manhunt , Manhunt 2 , and Bully into a single, massive universe, it offers unprecedented scale. However, exploring this vast world or unlocking every clothing item, safehouse, and vehicle can take dozens of hours.

Because official development on the mod halted due to take-down notices, managing your save files properly is essential to prevent crashes and preserve your progress across different computers. Benefits of a 100% Save Game

C:\Users\[Your Windows Username]\Documents\GTA San Andreas User Files

Starting the mod with a 100% completion file alters the gameplay experience fundamentally:

Every storyline mission for every integrated city/map.

Before you download any save file, know which version of GTA Underground you are using. Most recent downloads are or Snapshot 4.1.7 . A save file created for 4.1.7 may cause crashes or missing models in version 4.2, and vice versa. Always check the description of the save file.

: All properties owned and infinite ammo/weapons available at safehouses. Save File Format : Files are usually named GTASAsfX.b (where X is the slot number, e.g., GTASAsf1.b for Slot 1). Steam Community Installation Guide for Portable Setups

A valid "100% save game portable" file will have specific characteristics. If you download a file, look for a description that confirms:

Maximum cash, infinite stamina, and unlocked health/armor upgrades.

No high-wanted levels for crossing into different city territories prematurely. The Power of a "Portable" Setup

Place the .asi file into the main game folder or the scripts subfolder.

Instantly travel to Liberty City, Vice City, or explore the expanded San Andreas without waiting for storyline unlocks. Maximum Resources: Start with

Own every safehouse, garage, and business across all maps, giving you spawn points and vehicle storage wherever you travel.