I really love this game! But there is something I want to know: Is the MC's body static throughout the game, and any path that changes his body leads to a bad end? Or do you plan to make his body customizable through choices? From what I have seen ingame, I guess the former is more likely, but I just want to be sure.
Good question!
At the moment there's a "genetic instability" system that does cause the player character to permanently change. It's not fully implemented yet, but your character's description in the mirror changes the more you bad end.
In terms of more immediate TF stuff in future content, it'll likely be planet-specific. There are plans for hyper, weight-gain, bimbofication, etc, which allow the player to keep playing, but they'll be specific to planets for those kinks. It's honestly just to save on complexity, since tracking body type, hyper endowment and the like for every single scene would occupy a lot of time and energy.