Oh, this thread is a godsend! Now we can avoid these tropes. Anybody wants to give us a list? We really want to avoid most of these tropes. Thanks.
As I said above, you don't always want to avoid them, you just want to use them well. Tropes are like Idioms, a skilled writer can use a common trope to create something wonderful.
As an example, a scene I have planned for a later project (neither of the two games I'm working on now) is a common anime trope:
After nearly dying trying to a rescue a girl and awakening a power hiding in his bloodline, the MC manages to annihilate the threat to the girl and blacks out. The next morning he wakes up in his bed confused as to how he got there. He wonders if the last night was a dream, until he feels a warm wet sensation on his dick, looking down under his covers he finds the girl going down on him. Before he can ask her what the fuck is going on his sister knocks on his bedroom door, announcing that she's entering, he freaks out, and attempts to hide the girl. This of course not only fails but backfires, causing his sister to start screeching calling him a delinquent and a pervert, hitting him, etc.
This scene is common, but in a familiar way that humanizes the characters involved, makes the story, which will be a dark fantasy involving monsters and magic in a modern setting, relatable.
What's important is identifying the tropes, and knowing how NOT to use them. For instance, with the
stairway to heaven. It's often abused by people who see the sexual content in the game as the "goal" or "reward". If you structure your narrative so that something else is the goal such as creating and maintaining a relationship, you can use the stairway and not have it feel like you're just teasing your players. A good example of this is Dreaming of Dana. In it, your goal isn't simply bedding your sister Dana, but finding a way to have your cake and eat it too(oh look another idiom). As a result the plot of the game revolves around finding a "beard", a person to act as your partner to the outside world, and who's in on the fact that your real relationship is with your sister. This allows the dev to use the stairway reasonably, with a relatively quick progression (albeit too much grinding to get the stats up) from dating to having sex, and then going beyond that with other crazy sexual antics.
Another game that uses the stairway well IMO, is Daughter For Dessert, wherein you do start small, but quickly accelerate from some minor sexual act to full penetration in all 3 holes in like 2 dates. How does the dev manage this? Well, the goals of the game revolve around strengthening the relationship with your daughter and keeping your diner afloat. Sex isn't the reward, it's just a part of the game.
There are some things to avoid, the "
Retard in Lechertown" for instance is a very difficult trope to do well. See, its one thing if we are supposed to believe that your character is an alien from another planet, or a different plane of existence in which they didn't have sex, or at the very least, lust, the way we do here. But if your character is supposed to be a fully grown adult in this world where everyone is a rapist, then they should be prepared for that. The "
Dad is a Dick" trope is another bad one, as it creates a villain who's just too powerful to overcome, turning your porn game into Dark Souls. In fact, you should be very careful with antagonists in general. Make them believable, people don't get by being abusive dicks turned up to 11 all the time. In fact, abusive dicks need to use psychological conditioning to get away with what they do. They make you believe that they love you so that when they fly into a rage you have this feeling that they don't mean it, that they love you and don't want to hurt you.
My best suggestion to you is to read the thread, looking specifically for the responses with trope descriptions in them, the games that have them, etc. Then after that, see if there are any replies to those that point out bad examples of it, so that you can avoid doing what that game does. Also, play a lot of the "bad" games that are mentioned.
Every Dev should play Dating my Daughter to know how NOT to use the
Stairway to Heaven, and for that matter,
Be a Gentleman, and
No Life Dad. In this game you have the worst examples of all 3 of these. 19 releases in and the most we've gotten from the daughter is a pussy job, not vaginal sex, just rubbing it back and forth on your dick till you both cum. The name of the Be a Gentleman trope itself comes from the game over screens in this game in which any negative action ends with a game over and D telling you to Be a Gentleman, but it still encourages you to try, because you'll get some tantalizing scenes for it. And lastly, you are the quintessential no life dad, you have no relationships to speak of outside of work, your best friend is just a guy who shares your perversions and doesn't hang out with you outside of work, you have a hot boneable secretary, but you aren't, and you're treated like shit by your boss in spite of being a good earner. All of the sudden your daughter comes into your life and your secretary throws herself at you, you start fucking or at least getting close to her little friends, and other opportunities come you way, like the incest family in the beach town.
Meanwhile, Babysitter, written by the guy who created this thread, also has all 3 tropes. The Stairway is climbed much faster, and isn't treated as the reward for play, as the plot focuses on relationships of the characters and the subplots involving the romantic rivals. The Be a Gentleman trope is subverted, getting rid of the game overs by having you simply use spyware to do your peeping via webcams. And the No Life Dad element is treated like a character flaw that he's getting over as a result of finally getting his business off the ground, the fact that it happens to coincide with Christine's entrance into his life is just a serendipitous occurrence. He also has managed to write antagonists, the romantic rivals Silver and Robert, who are charismatic, likable, and even interesting, in spite of them being both your enemies for romantic reasons, as well as actual criminals with some degree of threat to them.
So yeah, read through all the tropes, play some of the games and take away from them what not to do, then as you're writing you'll be able to use them in a way that translates to a language we can all understand, but doesn't make your game suffer from their poor execution.