Some Russian Guy's Midnight Ego Fantasy:
We've all encountered games that read like a midnight action-hero fantasy where the main character (the writer) is the Bruce Willis of porn novels and he's about to "kick ass, take names, save the world..." and there may be one or two lewd scenes so it can be classified as a porn game (for revenue purposes, of course). Ahem, I meant: "Fuck bitches!"
Usually has some edgy name like "Redemption." Almost always shows a closeup of a male DAZ model's menacing face surrounded by girls in the banner... and someone holding a gun.
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I'm not going to name any of those games though since I myself am a developer and have no interest in throwing shade at others. Besides... while I haven't read the entire thread, I'm sure I've been roasted already.
Now as for the topic... I think some tropes can actually be a good thing, though, it's usually dependent on how they're executed. For example, there's only so many ways you can "accidentally" land in an erotic situation (whoops, dropped the fork! or -- oh no, the bathroom door doesn't lock!)... but I am of the belief that "lewd" moments should be frequent and plentiful in these games. So as long as we at least
try to be creative or add our own unique spin to them it's okay to use tropes.
Plot tropes are a bit different in that they are far harder to execute properly and, if not done well, can be far more annoying.
For example, how many of us just outright refuse to play games because the premise is that you're an introverted 20-something returning home from college. Or you're a no-life 18-year-old with perverted fantasies of his family. When an idea has been done
so much that it is practically run into the ground, many people will avoid it which is why you should try to add some sort of creative spin from a plot perspective, or not bother at all.