How are all stand-alone games cracked? I'm curious about this question.

Usually start the program to crack the game. Some embedded codes let the game bypass the genuine activation code and directly enter the game. Anyway, as an ordinary player, you don't need to know so much. After all, you can't crack it. But tell you, cracking the patch itself is actually the same program as the virus, so when playing this pirated game, anti-virus software often reports the virus. This is a normal phenomenon, so there is no need to make a fuss.