A game usually has complementary files, like the save file, settings file, etc. These are usually put in a folder the user controls. However, the user can cheat the game my editing the game files, such as editing how much money he/she has, or what level he/she currently is. Is there is a way to fully prevent that?

and here he looks at second method using resources

Is it a single player game? If, I wouldn't even bother. Let them cheat if it makes them feel happy. Why spend time on something that will not make the game better for those who play by the rules?

    UpsetChicken

    Ok if it’s multiplayer then the solution is probably to keep whatever state you don't want them messing with on the server side. Or just replicated on the other peers, depending on how exactly your game works.