Y'know, with this being a sci-fi transformation game, I'm really surprised that a robot TF doesn't exist yet. I feel like that could have some really fun mechanics, if all the content around Illustria Po, Bess, or the sexbots on Tarkus is anything to go by.
Like with other races, having more matching body parts contributes to that race's score. If you've got synthetic legs, that's a point towards the android score. Synthetic skin, that's a couple more points. Synthetic face, that means your head is now mechanical and in addition to more points towards the score, you now have to obey some of your programming. When the score goes too high, then you start getting buffs and debuffs fitting for being an android. Increased resistance to kinetic, burning, poison, and corrosive damage. Massively-decreased resistance to electric and lust attacks. Increased maximum energy (onboard miniaturized reactor), increased minimum lust. Perhaps healing consumables don't work on the player anymore, but gray goo is now much more effective to compensate. You could even have a combat ability or two based on your mechanical parts. Borrow Illustria Po's finger injectors, for example. Or heck, if you want a fun one for the memes, a 'joke' reactor overload combat ability that turns you and your enemies into a smoking crater and gives you a Bad End™.
If it's a sexbot TF, then you could have forced exhibitionism, humiliation, and some hypnosis-related content in there, with your sexbot's operating system forcing you to 'carry out your directive and pleasure males/females'. A permanent timed debuff, for example, that requires you to have sex every X hours... before your programming forces you to. Alternately and/or additionally perhaps you need cum to survive, so your reactor can combine it with a form of fusion to generate power for your body. If you fail to fuel your reactor, then you get gradually-increasing stat penalties. Too long in this state and your body goes into emergency shutdown, and the player wakes up in the wilderness of that planet X days later covered in semen from countless people who thought you were a discarded sex toy and used you while you were out. People calling you out in the halls of Tavros Station, demanding a fuck from the passing sexbot and driving up your lust. Sometimes your operating system even forces you to accept their requests.
I feel like we're already halfway there. The framework exists. There's already references to synthetic arms, legs, eyes, ears, and genitalia buried in the player appearance options (though only the eyes have a proper ingame description, probably because of Kara). We've got the True Doll perk, which turns most of the player's body into rubber and silicone and such. It's not too much further of a jump to unify all that with a transformative mechanism. A machine in Hand So's warehouse on Tarkus, perhaps? You climb inside and it overrides your microsurgeons to convert you into an android, like one of the local sexbot models and all that that entails. For those who have second thoughts, the machine can take a 'snapshot' of the player's DNA beforehand so they can be reverted back to their original race if they choose to... at a cost, perhaps. Reconstructing an entire body from a tiny scrap of DNA ain't cheap. And of course I don't think that it should lock you out of other TFs. Your microsurgeons are still kicking around inside your body, after all.
Kinda wish that I could code. I feel like I could write content for this, but I definitely wouldn't be able to prep it for the game.
