Hi there, congratulations for this great game! Here are a few ideas:
For the house:
- male slaves could be maids (maybe under the name footman or lackey, with a butler being the male equivalent of the head maid)
- the house could have a cleanness score, based on the status of the rooms (low at the beginning of the game). Upgrade of rooms would increase the max cleanness of the house.
- the cleanness score in the house would naturally decrease (an amount or chance proportional to the number of occupants). Below some threshold (or at 0), it would start having negative effects on the happiness of occupants, and also on influence. A too dirty house would prevent from organizing events.
- events (casual evenings, dinners, parties) would result in an extra increase of dirt (or loss of cleanness). It would depend on the kind of event and on the number of guests.
- reduction of dirt (increase of cleanness) would result from the total domestic skill of all active maids/lackeys (not those given free time), possibly increased by the skill or authority of the head maid (for female maids) or butler (for male servants).
- it could be possible to maintain the house in a cleaner state by controlling the maids' work (with an interface similar to the food). Increasing the maid's work increases their efficiency (already based on their domestic skill) but reduces their stamina and happiness, and increases the chance of becoming Defiant. Some maids with a Lazy trait may refuse to work more (or negative effects could be more important for them). Actually all kinds of slaves (workers) could be controlled in a similar way.
- the number of maids/lackeys would limit the size and opulence (and therefore effects) of events that can be organized (maybe it's already the case but it's not what I observed).
Nightly events:
- possibility for two slaves to be caught mating (during nightly events). Maybe such an event already exists (never met it).
Vehicles:
- possibility to buy a sedan chair or palanquin for a girlfriend or wife. Effect on a girlfriend: augments her daily chance to increase her happiness and affection (up to a limit). Effect on the wife: same + increases the influence of the household. There could be models of 2, 4 or 8 bearers, with different prices and bonus (mostly on influence gains). Bearers would be a new slave occupation (a minimum strength and stamina may be required, and these characteristics would have a slight chance to increase every day in this role, up to a limit).