I had an idea this morning, granted it's for another slave maker clone, but I had a couple of ideas that set it apart from all the rest;
1. Real photos. No hentai like every other slave maker game out there, but pics of real people. A side effect of this would of course be no loli.
2. Everything is animated. The actions you take are illustrated on screen by a 5-10 second long film clip, taken from videos found online.
3. Easy and extensive moddability. All the games assets are stored in a folder structure where all you need to do to mod the game to add content is add a properly formatted pic/video to the correct folder and boot the game.
Example: In game you get pic related as a slave. The game read a "profiles" folder where it randomly selected this pic that has a unique name and a few identifiers in its filename (for example "AsaAkira.Female.Adult.Asian.DarkHair.MediumTits.png"). You then decide to train her in anal, so the game looks in through the folders Assets>Slaves>Female>Adult>Asian>DarkHair>MediumTits>Anal and then chooses a random clip from that folder, so you get a clip that fits the body of the slave, and when you do it again you don't get the same clip every time, as long as you have more than one clip.
Make no mistake, I have no programming experience and am a total ideasfag on this, but I'd still like to hear what you think.