To make this easily explainable, I'll allude to another game. When I was playing Big Brother, the mother's new boyfriend started to fuck the mom, essentially, I was getting cucked. Obviously, I kicked him out. Now if the role was reversed and I was that dude, I would totally be cool with that, because I would be the cucker.
Now with both words defined, I was wondering, is there a game like that? I'm not the cucked, but rather the cucker? Hopefully this makes sense.
You're aware that Max was not fucking his mom prior to the arrival of Eric, correct? You weren't getting cucked with your mom. Now if you let it get to the point where he blackmails Kira, then you could kinda say it maybe... however Kira is a porn star and a slut, who never made any actual commitment to you, so again, not really cucking, if anything, like most games with an NTR tag, Eric was a rival and nothing else. If you play Babysitter you'll see a much better implementation of this, as the MC has to keep Christine interested in him in order to ensure that she doesn't fall into the hands of Robert or Mr. Silver. But seriously though, Eric fucked my mom before I even had a chance with her, he never got with either sister, and he had to blackmail the aunt to get with her. If anything Eric was the pathetic piece of shit that you cucked, not the other way around.
That said, do you want to be a male MC? Female Protagonist games tend to have a lot of cucqeueaning going on. The MC Ashley in Good Girl Gone Bad, for instance, has the opportunity not only to turn her boyfriend into a cuck, but also to fuck her best friend Eva, who's going out with David, and whats more, there's the opportunity to steal David from Eva.
Chloe18 has a really good line with the character Pizza Girl where you slowly convince her to start fucking not only you, but other guys behind her boyfriend's back.
Beyond female protagonist games I tend to play games that are so afraid of NTR that nothing even close ever comes up. I know the game Absolute Power has a possible future line where you fuck your friends girl, however that game has more grind than BB and MotH combined, and it's only on like .04.
The Artifact has you cuck your dad
My Summer with Mom and Sis also has you cuck your dad
If you prefer milfs to teenage girls next door, you can choose to become the master to Mia's Mom in Summertime Saga, effectively cucking her husband.
Intimate Relations hasn't gotten there yet, and you play as the daughter as well as the father, but you're totally cuking her boyfriend in that... however your wife is also fucking the trainer at the gym so, meh.
The text based game School Dreams 2 and the followup, 3 which actually has art, are all about fucking your best friends little sister while he watches. The game makes it pretty obvious he wishes it were him, so it's actually the only Authentic Cuckoldry game I've ever played.
