I don't really see what sort of game this is from just this. Is it just Bad end content.
A-Yes and no we have two cg's per monster, one it's being defeat the other one it's willing surrender to it.(You don't need to get defeat in order to surrender ) both are different cg's
Do you have to do two runs to see all the cg?
A-No
Are the pregnancy things just a one off?
A-No, it's the main fetish of the game, At ch 01 We have 4 pregnancys for exemple;
1- slime surrender
2- plant defeat
3- plant surrender
4- the dream with anna.
Still a lot to come, with humans and so on.
Any aftercare scenes?
Yes, but they are small, at Dark trought-01(Game content)at slime nest eleonora try to revive the slime nest, taking care of the slimes.
My favorite sort of games are those were you actually can play with your decisions.
This game have few decisions, but mostly of then will change the game play, at certain moment you'll be able to see what you have done, one exemple;
I hope i made at least something bit clear for you.