Maybe you should try looking at the work of Archon of Flesh, although it is, well...a bit more grimdark than what you might want. Which is to say, it's mostly mechanicus femboys getting tortured.
Their reddit:
Archon of Flesh (u/Archon_of_Flesh) - Reddit
Their fanfiction (which admittedly is so fucked up that even hardened fans have a hard time with it):
To Break a Soldier of the Machine God - Archon_of_Flesh - Warhammer 40.000 [Archive of Our Own]
Also, if you complain about this being degenerate, I should remind you that you looked up a Warhammer 40k porn game, so it's fair game to expose you to Archon of Flesh.