>>14118797
If by "anatomically correct" you mean it shows their genitals, then you're on the wrong board and you should check out /hgg/ instead.
The reason I'm saying this is because genitals introduce nothing in terms of gameplay since in videogames you have far more ways to spell out information for the player than mesh geometry and you usually go for the simplest form that's still informative enough.
And even then, this question is only pertinent when it's a part of the gameplay or world building in one way or another.
For instance, in terms of worldbuilding, a game might introduce a species that sees the females and the males act differently (have different stats or strategies or uses) and because of this, it creates a very large but simple signal like the females having blue or green fur while the males have red or yellow fur. The contrast between cool and warm colors is clear enough that the player can tell the gender apart even from a greater distance, something you wouldn't have if you were using a small part of the mesh for identification instead.
In terms of gameplay, some games do feature breeding of some kind and this becomes important, especially if the concept of dimorphism is included or simply the context of females becoming far more valuable as womb carriers.
However the genital mesh itself has no bearing on this. A simple signal on a HUD or very basic signs like horns on the male are more than enough to make the distinction and let the player decide what to do.
The only context where animal genitalia is expressly required and the base minimum of detail required is if the genitalia and not the gender is the focus of the attention itself. In other words, if the entire point of the game or at very least it's main focus is zoophilia or strictly animal biology.
The first one is best fulfilled with lewd games that appeal to that fetish, ence my suggestion of /hgg/, the second one could probably be met with educational videogames but to be honest, I doubt anyone actually makes educational videogames about animal genitalia since anyone that needs to know about that stuff is better served learning from a book.
Another alternative would be /d/, but only the most tame parts of it that still feature strictly just the animal itself.