what exactly is the dlc and can it be gotten on this website?
DLC is not allowed on this website. But it is available for free from the developer's website. Any screenshots including DLC content are not allowed either.
Why is it not allowed? Because it breaks rule 7 - it includes native girls and native boys, with native girls having all the functionality of female natives. Because according to the western morality, making furniture out of people is okay, but having sex with little girls isn't.
With DLC, children are born as boys and girls, and need human-milk-based potion to grow up.
It also includes a unique character "Little and Nickel", who is something of a glass cannon in combat. Little is a fairy, and Nickel is her rodent mount. Neither of them has any H-scenes, but there is a game about Little on this site.