First thing first, this game is a management game so you will have to use your brain too.
Gameplay: Really fun and addictive, the reason why i haven't written anything about this game is because i have been trying to unlock all the ending. Yes you heard it right, i've replayed it several times to unlock all the ending. It's really fun and enjoyable. Anyway, your mission is to build a large goblin army, capture as many girls as possible, mind break them and expand your territory. You will have to set up traps, build a team and manage your resource wisely in order to unlock your desirable ending. I recommend you reading the walkthrough if you're not a huge fan of this type and just want the scenes, other than that you won't regret because the game is really addicting.
Story: You are the leader of goblin and your mission is to bring glory to your kind (by capture and raping any female in your way). That's it. The story is fun and it reminds me about goblin slayer manga but in this case it's pussy slayer.
CG: Really good, each of the girls has a different sex styles and will also change depends on what goblin she's mating with. (The DLC gives us more girls and two new endings). And yes all of them are rape. The girls have 3 modes (rejection, half mind break and nasty) and their text lines during sex scenes will change as their mode change. So remember to view all the scenes of a captured girl (the girl got raped by all type of goblins) before she changes her mood because you won't able to view it again in the main game (still can view it in the gallery).
In sum, this game is really good and i have to say that i enjoy it a lot. The translation might not be perfect but it's still readable, and that's good. Other than that, everything is gorgeous and worth your time. So once again, stay safe and enjoy your game.