Quiting idea of the Big Brother and making a game based on a woman main character was a major mistake from the biznis perspective. That concept did not work even through great effort to it. No wonders that after two years we are back with “BB2”. There is no point in reinventing the whell, you just use it because it works.
Wrong train of thought. It doesn't really matter what gender the main character is. The main thing is what is happening around and, oddly enough for porn games, but still true, the plot. Components of success in any game (ihmo):
1) plot, goal and various ways (at the player's choice) to achieve the final goal (or fail
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);
2) graphics and a charismatic protagonist who "hooks" the player;
3) side tasks and activities that can affect the plot and development of the protagonist;
4) well, you can add craft, combat system, and so on here.