>>8912606
While not great, you can use sims 4.

Using these mods:
GODJUL1's Height Slider (extreme);
Expanded Head Size Range (to make it look cuter with the smaller height);
Breast Augmentation;
PeachyThicc;
Candy Shoppe Skintones (if you want unnatural skin colors);
Khitsule pointy ears (self explanatory);
Luumia's vanilla skin;
Cmar Breast Separation (good for customizing tits further);

If you know about sim modding then you can just get the usual body mods, but if you don't, get either EVE V9.2 or Luumia TIT-E.
There's infinite custom content so you can get pretty much any clothing you can think of, the downside is that the height mod means sex animations don't work.
Still, if you want to create a character to use as a reference, it's not bad.
There's also ATLYSS, but there's barely any customization on that (other than tit and ass size).

>>8834303
>Futa protagonist
Trash.
I'm sorry anon, but part of the appeal of goblin girls is you "taming a wild creature", it's a self insert fantasy at its core.
You make the protagonist a futa, you've made a tranny fantasy game.