Anti-debugging and Injection Detection

This chapter explains how debuggers, injected DLLs, trainers, and code patching tools threaten the runtime integrity of single-player games. It discusses how attackers can pause execution, inspect memory, modify logic, hook Unreal Engine functions, and inject external code directly into the game process. The chapter introduces layered detection methods such as debugger checks, timing analysis, thread scanning, module enumeration, and code integrity monitoring. It also highlights the importance of passive and delayed countermeasures to avoid revealing detection logic too quickly. Through case studies, the chapter shows how unprotected runtime environments can allow attackers to bypass AI, hijack input, and manipulate gameplay systems. Overall, the chapter establishes anti-debugging and injection detection as essential defenses for preserving execution control and gameplay integrity.