God dammit, this does not bring joy for my current Stellaris games where I'm playing Necroid empires because it's absurdly OP and deals with several of my pet peeves about the AI being pants on head retarded.

For those wondering Necroids are things like vampires that "consume" other sentiments in order to reproduce, converting a population from one species to another. This makes it a great way to remove shit species from the game while also increasing your own populations.

Endless Space 2 has a version of this with the Vodyani empire.