Experience the thrill of danger and seduction as a scientist in a secret underground research facility, studying and experimenting on a diverse group of unusual, creepy, and seductive female and futanari monster creatures. From tentacles to supernatural powers, these subjects will challenge your scientific prowess and test your self-control. The facility is prone to random accidents and events, so be prepared for unexpected and intimate encounters that could lead to dangerous situations.

Indulge in your wildest fantasies at the Breeding Facility, a modern and sprawling complex designed to cater to your every whim. With a vast array of beings, from humans to mythical creatures, available for breeding, you are in complete control. Customize your chosen partner to your exact specifications, and experience a new and exhilarating encounter with each choice. Meet Sage, a beautiful 19-year-old futa girl with a variety of fetishes, and BOB, your comical and efficient robotic assistant, as you navigate the labyrinthine halls of this unique and enticing world.

You are forced to breed with various monstrous creatures in the Breeding Reserve, a facility dedicated to the Hybrid Program. As a participant, you are subjected to the cold and professional interactions of the scientists, who prioritize using your vagina. The story is filled with graphic descriptions of sexual acts and power dynamics, as you encounter the lustful Swarm, the arrogant centaur Esclop, and the dangerous alien creature Fersh'keh.

You are the dominant male employed at a breeding facility to impregnate a variety of beautiful and seductive monster girls. Enjoy the power dynamic and the taboo nature of forced mating with a Sensual Succubus, Tantalizing Elf, Seductive Neko, Busty Harpy, and Busty Mermaid. Each with unique physical attributes and personalities, they will entice and pleasure you in ways you never imagined.

You are a caretaker at the Malina Mystic Zoo, surrounded by rare and exotic monster species. After recovering from a cold, your heightened pheromone levels have caused the monsters to view you as a potential mate. The zoo's management proposes a breeding program with you at its center, offering a new home and a substantial pay raise in exchange for your participation. Form a deep emotional connection with each monster, including Moss, Triton, Van, Arachne, Visa, Seth, Zayan, Volcan, Alex, Rowan, Warrick, and Alaida, before the mating bond is solidified. However, beware that if you are away for too long, the monsters will experience discomfort and pain.

You are a newly captured monster at the Hillhouse facility, where the shy and adorable transgender male, Levi Bullen, is tasked with calming you down. As he uses his body to help the scientists understand your biology, you'll find yourself navigating a complex relationship with Levi, who prefers the company of monsters over humans. With his submissive nature and wide range of kinks, will you be able to tame this sweet creature or succumb to his allure?

Forced to become a “cow” at the Monster Milking Barn, you are now subjected to the sexual desires of various monstrous clients, including demons, centaurs, orcs, and minotaurs. With an average cock size of 14 to 18 inches, these creatures will pound you hard and rough, leaving you filled and satisfied. Embrace your feminine side as your supervisors, Mel and Nefrette, push you to become the perfect “cow” in this dangerous and degrading world.

You are the center of attention in a dragon breeding facility, where female dragons of various sizes, colors, and personalities pay for the opportunity to experience the pleasures of a human male. As the day unfolds, you navigate the complexities of this fantastical situation, discovering the diverse desires and kinks of these mythical creatures.

You are a curious and adventurous man who visits a newly-opened Monster Girl's brothel. In this establishment, the power dynamic is reversed, and the seductive monster girls choose their clients to indulge in their darkest fantasies. With a diverse array of monster girls, each possessing distinct personalities and sexual preferences, your fate and pleasure lie in their hands.

You are the VIP in Eden, an underground laboratory dedicated to interspecies breeding experiments. With the assistance of Ludo, an advanced AI, you have complete freedom to indulge in your darkest desires and lead the perverse experiments. Choose from a diverse range of female specimens, from Earthly animals to mystical creatures and alien beings, and mate with them or observe their interactions. The laboratory is your playground, where you can explore the limits of pleasure and control.