I know it's a cliche of the genre, but some bad endings would be great instead of the frustrating game over. Some programming to figure out the area you're in, the individuals you were fighting, or other things would also be good. I.E.: In Gorn Outskirts, if you're defeated you could be "found by slavers", versus at the Sea where a Scylla or Neired could drown or keep you as a breeding pet for life. Depending how graphic or kinky Maverik wanted to get, we could get vore or fucked by the plants, some gore endings with wolves or bears, or even just restricting it to one ending type per area (Slavers=Gorn, Slugs=Woods, etc.), as well as just other general things. If it got a bit big with a lot of different kinks, could also pick and choose possible ending options similar to disallowing certain things in the kink section, with the harder ones not being automatically clicked [I'd probably avoid vore endings personally.].

 A "survive" option after an event like that would also be cool to consider, where you get a long-term penalty for "dying" that eventually goes away (I.E. your dick could be infertile for a while after being a breeding pet at the sea, as well as you could have a -80% health stat for about 30 in game days or something similar) I get it, Strive for Power is a game generally aligned more with being the one to dish out the bad endings, but I would love to see something other than that goddamn game over screen next time I forget to heal in battle -.-

This would all require a good bit of programming to add, but would be a nice little addition to the game. Even if it was the same text each and every time, or did not have proper specifications based upon characters sex, it'd be just something refreshing.

(Also completely unrelated, but asphyxiation play would be GREAT for adding fear to slaves as well as would be super fun for masochistic/perverted slaves.)

Personally, I like the idea of penalty instead of dying when lost in battle. Because I think almost all of the player will just reload the last save file when they died.

in my opinion ,I think that after being defeated, there can be players whose characters are treated as slave stories, giving players the option of escaping or continuing to be a slave for a period of time,and some stories after being enslaved.

or... since the game can read the saves. Make it so that on defeat, your character becomes an enslavable NPC that you can buy. Having the same stats as when they were defeated, minus the gear.