From my perspective as a player, I started modding the game to make it more fun for me, and I’ve shared those changes with the community. For me, the core gameplay loop is enjoyable when it is challenging. That means there needs to be a way to fail.
At the moment, running out of sparks is the primary bad end that needs to be avoided. Therefore, economic rebalancing to make cashflow an ongoing concern. At the same time, there are inconveniences and perks that motivate changing residence and “progressing” in various ways.
What about considering enriching more uniqueness of four districts, they're quite different in game lore but not very much in gameplay. They should possess more unique and repeatable intersections with your daily training loop. Personally, I expect you can make it more fun to play in mid or late game period, enrich their contents based on the currently available contents.
Last week one came to ask me something about this game's codes. But I noticed in his screenshots that he cheated his sparks to 99999. Of course we cannot avoid players cheating even if we didn't set much repetitive works in the game, but it is obviously not reasonable to focus on the sparks to unlock nearly all the game contents, besides sparks, more driving forces are still needed.
The variable protection from abnormal changes in $newloc is proved to be a good way to avoid cheating.
In the training loop, the main limit factors to train an S+ slave are, your ability and time, the latter can be solved through various ways as long as you can live, the former can be solved by lesson and tutor help from the guild, yes it's still a matter of sparks. As long as you have enough sparks, you can train an S+ slave, no matter where you live in, how well you are living, how famous you are, how capable you are.... Arena combat rewards are about sparks, the rent in different districts are about sparks, slave's rank is about sparks, the noble status and purchasing house is about sparks....Sounds somehow monotonous right?
We talked about earlier how to make the process of training her form B+ to S+ more strategic (solving her selfish demands, balancing her fearness, spoil etc.), Then we are supposed to involve more factors, especially your living condition & quality into training loop, other than money.
Of course, these focus on the mid & late period of the game, and need a lot of work, and I didn't provide pratical details, but we are not in a hurry, you are really talented and thoughtful, if you would like, we can talk about it (maybe in a private conversation) and make progress little by little.
After I finish my mods, I would like to adjust the active sex part.
We always need to complete the main content design part first, and then do the fine-tuning of the values.