Custer's Revenge – Atari 2600
The oldest game on this list by a country mile, Custer's Revenge relied on the most basic of visuals to portray pornography, sexism and even rape. Taking control of the naked General Custer (who sports a rather impressive erection) players must avoid incoming arrow fire as they guide the character from one side of the screen to the other, where a naked native American woman is waiting. Points are amassed by literally 'scoring' with this poor woman, even if it's against her will. How this game ever got released is anybody's guess.