What kind of games are hackable?

Allmost every kind of game is hackable in some way, most of the games have anticheat programs, but nowadays the anticheat programs are hackable too, It is possible to write Bypass for the anticheat program, so the program just couldnt detect anything. Also there is a way to reverse engineer game exe-s, so you can make the game more vulnerable to hacking. That would be it for this time .