Max's life: you cuck your friend by fucking his sister and mother, however this isn't a major part of the game.
Cohabitation: Cuck your brother by fucking his wife and daughter.
Corruption: Basically fuck various women, some of them are the wives of men (for example, fucking the neighbour's wife right in front of him)
Personal Trainer: Fuck the wives of men
My Legacy: Fuck your brother's entire family
Milfy City: You've probably already played this gem.
Urban Demons: Cuck your bullies, friends mom, etc
House arrest: Cuck your neighbour
Luke's way