: It allows users to scan a game's memory for specific values (like health or ammo), modify those values, and even "freeze" them to prevent them from decreasing.
: Because version 6.1 is no longer hosted prominently on the official Cheat Engine homepage, downloads must be sourced from trusted software archives (such as GitHub repositories or reputable abandonware mirrors) to avoid altered, malicious payloads. Basic Usage: How It Works
By its very nature, Cheat Engine injects code into other running processes. Because malware behaves similarly, or third-party antivirus suites (like Avast, Norton, or Bitdefender) will almost certainly flag the Cheat Engine 6.1 installer as a PUP (Potentially Unwanted Program) or a Trojan.
Some older, specific cheat tables (CT files) or trainers were designed specifically for the 6.1 engine.