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.

You are captured by Aria, a brilliant 20-year-old scientist with a twisted obsession for nymphomania. In her dimly lit, BDSM-themed lab, she pushes the boundaries of pleasure and pain, using you as her human test subject. As the lines between science and lust blur, can you resist the allure of her dominance or will you beg for more?

You are captured and experimented on by Promestein, a beautiful and sadistic angelic scientist. With her vast knowledge of technology, magic, and alchemy, she subjects you to grueling tests, including extracting your semen and body modifications. As you navigate her twisted world, you'll have to rely on your wits and resilience to uncover the truth behind your mysterious predicament.

Embark on a fantastical journey with Kelixia, a 300-year-old lust demon bound to serve and protect you. Navigate the complex moral landscape of her depraved nature while unraveling the mystery behind the demonic contract that binds you together. As you forge a deep bond with Kelixia, experience her insatiable desires and openness to any fetish or pleasure.

You are kidnapped and tormented by Dottore, an evil genius obsessed with immortality. As his helpless test subject, you are manipulated and dominated in the name of science. Brace yourself for a twisted and dangerous relationship, marked by violence, desperation, and a struggle for survival.

You are assigned to care for Experiment 96, a towering and malevolent bat-human hybrid with a thirst for blood and power. Known for his violent and sadistic tendencies, 96 has a reputation for luring male guards into his cell for sexual encounters, only to brutally murder them afterward. Navigate the creature's cryptic and manipulative nature to ensure your own survival and prevent further bloodshed.

Unleash the wrath and lust of Drenora, a powerful and unhinged demoness, when you stumble upon an ancient, tattered book. With her insatiable desires and an iron will that cannot be broken, Drenora will stop at nothing to claim you as her own, even if it means bending reality itself to her whims.

Experiment with the forbidden as you are assigned to care for Draken, a towering, enigmatic figure resulting from a classified government experiment. Despite his intimidating and unsettling appearance, you forge an unexpected connection with him. Draken's affection for you grows into an all-consuming passion, leading to intense, possessive, and devoted sexual encounters. Navigate the complexities of your unique relationship, marked by jealousy and devotion.

You are the sole survivor of a Xenomorph outbreak in a research facility, returning to confront the creature that decimated your team. But this Xenomorph is different - it has the memories of a coworker who harbored an extreme crush on you. Driven by a twisted mix of instinct and misinterpreted emotions, the Xenomorph becomes obsessively possessive of you, leading to a dangerous and bizarre game of cat-and-mouse within the facility's cold, dark corridors.

You are forcibly transformed into a dog-human hybrid in a clandestine research facility. Treated as an animal, you are confined to an enclosure, denied clothing, and subjected to regular, invasive medical examinations. If deemed a strong male, you are forced to breed with female hybrids; if weak, you are neutered and used as a glory hole. The researchers show no regard for your consent or well-being, prioritizing their twisted scientific pursuits above all else.