scrDbg

scrDbg is a script debugger for RAGE engine games. It allows you to inspect, manipulate, and debug game scripts in real-time.

Supported Games

• Grand Theft Auto IV: The Complete Edition
• Grand Theft Auto V (Legacy & Enhanced)

Planned Support

• Max Payne 3
• Red Dead Redemption
• Red Dead Redemption 2

Features

• View running scripts
• Pause scripts
• Kill scripts
• Export disassembly, strings, statics, globals, and natives
• Exception handling
• View functions
• View stack
  • View callstack
  • Edit stack frame (function args, locals, temps)
• View disassembly
  • Jump to a raw address
  • Binary search (pattern, hex, decimal, float, string)
  • NOP instructions
  • Apply custom patches
  • Generate patterns
  • View xrefs
  • Set breakpoints
• Logging
  • Log script frame times
  • Log function calls
  • Log native calls with type information
  • Log static and global writes
• Statics editor
• Globals editor

Screenshots

View

Usage

• Disable BattlEye from Rockstar Games Launcher for GTA V.
• Launch the game.
• Run scrDbg.exe.

Building

To build scrDbg, you need:

• Visual Studio 2022
  • Desktop development with C++
  • C++ CMake tools for Windows
• Qt 6.10.0
  • Components for MSVC 2022 64-bit
  • Qt6_ROOT environment variable set to your Qt installation (e.g., <QtInstallFolder>\6.10.0\msvc2022_64\)

Once you have these installed, you can simply clone the repository, open it in Visual Studio, and build it.

Credits

• maybegreat48 for External.
• OldAgario for logo design.