Here's a possible idea which might make your game a bit more unique :-
Every time the player gets caught you don't lose but instead get captured and dragged to a "hatchery" and the player must try to escape and continue on with their objective. While in this hatchery the player gets dominated by the females in order to get impregnated. The more the player impregnates, the harder the game becomes since you are increasing their numbers across the station. Therefore encouraging the player to not get caught by the enemies since it'll just make more of them. However, some might find this spicy hot.
Now if you manage to escape, you would ask yourself, how would the player reduce their numbers? The game features male domination on the enemies as well, but given the impregnation function increasing the number of enemies, that would be counterintuitive. Well the player will have two ways to combat enemies:
The first way is what the game already has i.e fists and regular ammunition for the pistol. But it would only knock the enemy down not kill them. Once an enemy is down, at this stage the player can choose to dom the enemy or not. Should they choose to dom, they will have a free choice of either with or without a condom. With a condom, this will reduce the chances of impregnation; while without may guarantee. Note however, this way will still not kill the enemy.
The second way would be a special weapon and/or ammunition for a gun which can kill an enemy and help reduce the population.
Now why would you want to add this feature? Well for one it will satisfy the impregnation fetishists around here, and gameplay wise, it would not only add a unique element that is rarely found in videogames, but also add a dynamic difficulty and have players engage a bit more mindfully after having a bit of femdom fun in their initial save. Additionally, it will not feature a game over screen, allowing continuous play in a large open world space station that is evolving each time the player gets caught. I believe having something like this would make the game unique in terms of playstyle, and I personally would really like to see something like this in action.
However when it comes to limitations, I am unaware on what game engine you are working on and am not entirely sure if whether this idea could be implemented. Would love to hear your thoughts on this idea.
Should you wish to explore how this could be implemented, I could provide you with a few pointers such as a "world state concept" that is graded on a scale between 1 to 3; depending on the number of times the player impregnated and the number of kills they got. I have a couple other possibilities should you wish to know more.
TL;DR: Rather than every time you get caught you lose - instead, every time you get caught, the game gets harder since you are impregnating the enemies and thus helping them populate/replicate.