Introduction This document is part 1 of the Cryptocurrency — Understanding Money in the Digital Age series. Just a few years ago, saying “Bitcoin will reach 100 million KRW” was mostly trea...

Introduction This document is part 2 of the Security & Hacking series. In Part 1, we looked at the world through the attacker’s eyes. We observed how Buffer Overflow breaks memory bound...

Can You Read This Code? When you open a weapon class in an Unreal project, you see something like this. // Weapon.h #pragma once #include "CoreMinimal.h" #include "GameFramework/Actor.h" #includ...

Introduction If you are a game developer, you are familiar with words like glitch and exploit. Speedrun techniques passing through walls, inventory duplication bugs, infinite health via memory m...

Can You Read This Code? When you open the damage handling code of a character in an Unreal project, you see something like this. // DamageableCharacter.h UCLASS() class MYGAME_API ADamageableChar...

Introduction This document is the 3rd part of the Internet Infrastructure — A Client Developer’s Curiosity series. “The Internet runs 24/7 without rest.” It feels obvious, but if you step bac...

Can You Read This Code? When you open a character class in an Unreal project, you see something like this. // MyCharacter.h UCLASS() class MYGAME_API AMyCharacter : public ACharacter { GENERA...

Introduction This document is the 2nd part of the Internet Infrastructure — A Client Developer’s Curiosity series. Right now, as you read this, your surroundings are filled with invisible ele...

Can You Read This Code? When you open inventory system code in an Unreal project, you see something like this. // InventoryComponent.h UCLASS() class MYGAME_API UInventoryComponent : public UActo...

Introduction This document is the 1st part of the Internet Infrastructure — A Client Developer’s Curiosity series. As game developers, we are quite familiar with how the rendering pipeline wo...