: Open your GTA IV root folder (usually where GTAIV.exe is located).

: Use RB + X (Xbox) or R1 + Square (PlayStation) to open. Installation Basics

The for version 1.2.0.43 (often associated with the Complete Edition on Steam/Rockstar Launcher) remains the definitive way to play Liberty City your way. It transforms the gritty realism of the base game into a chaotic sandbox with unmatched control. Performance & Compatibility