What is Game Modding?
Game modding is the practice of modifying a game to change its behavior, appearance, or functionality. It's a fantastic way to learn programming while working on something you're passionate about.
Getting Started
Prerequisites
- C++ knowledge — most game mods are written in C++
- Basic understanding of memory — pointers, addresses, hex values
- A text editor or IDE — Visual Studio is the standard
- A game to mod — start with something you love playing
Tools of the Trade
- Cheat Engine — for memory scanning and analysis
- IDA Pro / Ghidra — for disassembly and reverse engineering
- A debugger — Visual Studio's debugger or x64dbg
- Hex editor — for inspecting binary files
Basic Concepts
Memory Addresses
Games store everything in memory — player health, position, inventory. By finding these addresses, you can modify them:
// Example: Reading player health from a known address
int* health = (int*)0x00B6F5F0;
std::cout << "Health: " << *health << std::endl;
Function Hooking
Hooking lets you intercept and modify game functions:
// Original function pointer
typedef void (*OriginalFunc)(void);
OriginalFunc oOriginalFunc = nullptr;
// Our hook
void HookedFunc() {
// Do something before
std::cout << "Function called!" << std::endl;
// Call original
oOriginalFunc();
}
Tips for Beginners
- Start small — change a single value first, then build up
- Use references — other mods are great learning resources
- Document everything — you'll forget why you did something
- Join communities — forums and Discord servers are invaluable
- Be patient — reverse engineering takes time and practice
Resources
- The GTA modding community forums
- IDA Pro documentation
- Cheat Engine tutorials
- Game Hacking by Nick Cano (book)