So here's this fucking ungodly abomination of an idea that I'm never going to make happen, and probably nobody is, and I'm OK with that.
Your father died recently under strange circumstances. His last will was for all his riches to go to his brother and the ownership of his most profitable mine to go to you. Unfortunately, and for a few months now, the mine has become overrun with monsters and feral beasts. Thankfully, your uncle is willing to give you a lifeline. He'll use his contacts with a number of slave traders to be able to offer you "explorers" to send into the mines and exploit its riches. Or to be your own personal fuckpets, it hardly matters either way.
Setting-wise, it'd be fantasy, specifically around the Cinqueccento or XVI century. Mechanics-wise, there'd be 4 main stats: Physique, governing melee (Strength and Resistance). Sensitivity, governing magic (Affinity and Aura). Mobility, governing agility (Accuracy and Evasion). Charm, governing Eloquence and Fertility/Virility. All these stats can be enhanced through the use of potions, but using them will warp the user's body in specific ways (EG: Boosting Phys. can result in a character gaining muscle mass or becoming taller. Boosting Sens. can result in localized or general body expansion). Using too many potions to enhance a stat will, however, end up affecting all the other stats negatively.
Health, Mana and skills are dependant on level and race. A slave can pass their skills and Stat (growth) Rates onto their children.
Gameplay would be instanced. On the one hand, you'd have the settlement around the mine, where your slaves can be assigned to a number of tasks that'll yield more or less results (EG: Cash, resources, more slaves) depending on their stats. You'll also be able to change the race of any of your slaves by fusing them with monsters caught in the mines as well as fucking your slaves, either for your enjoyment or to impregnate them, which will result in you getting a free slave sooner or later depending on the impregnated slave's race.
On the other hand, you got the mines, which would play out as short combat gauntlets. An X number of fights in a row with brief events inbetween, which would reward you with cash, resources, healing, etc… Once Post too long. Click here to view the full text.