I cheat/cheated in Payday 2, GTA5, Dark Souls 1, and Dark Souls 3. None of them for any nefarious purpose however.
Payday 2 was so I could unlock DLC items because forget your stupid ass microtransactions.
GTA5 was to bypass the garbage grinding. I stick by my decision even after being banned. I'd do it again too.
DS1 was to get rid of those stuffty chinese cunts ruining me and my friend's fun/time.
DS3 was after I 100%'d the, I wanted to bypass boss' more quickly so I could go fight people legitimately in Gank City.